C'est une version du SIG-550 ou Fass 90 destinée à remplacer le M4/M16 dans l'US Army et produit uniquement en version semi-automatique pour se plier au marché américain et international. Mufflers & accessories for Grenade Launchers Mufflers & accessories for Grenade Launchers. out of stock (0) sig 556 classic 5.56mm 16" tele od grn 30rd. The new SIG 556 series utilized AR magazines, and as mentioned, the 556R used standard AK magazines. Sig Sauer 556 SWAT Rifle & Swiss Folding Stock MFR# R556-16B-PS-RD UPC: 0798681418145 The next generation in the evolution of the SIG556 platform, the SIG556 Patrol Rifle integrates the accuracy of a 16” barrel with the maneuverability and quick pointing ergonomics of the SIG556 Short in a compact, no-nonsense package. He said he does not like the 556 for the same reasons. [ARCHIVED THREAD] - Sig 556 switching to Swiss made furniture from the factory. Out of Stock. Someone did it once, though naturally out of stock: SIG SAUER 551/556 Spring & Firing Pin Spare Parts Set | Colorado Gun Sales Note, they claimed that it was indeed a 551/556 kit, so not US-specific. Solution: Sig Sauer 556 Stock Adapter-PSB-T-BLK $88.00. Save: $23.00. Out of stock. It looks cooler too, no? Thread Tools: Show Printable Version. Metric Roll Pin (1) for SIG 550/1/2 & 556 Front Sight Adjustment Wheel (Taper per product instructions.) Currently 5/5 Stars (1) Description: Designed specifically to fit the Swiss SIG SANs 550 / 551 / 552 as well as all USA SIG 556 & SIG 522 Series Rifles & Pistols. Some of us, however, are just quirky enough to lust after something a bit different. SIG SAUER Telescoping/Folding Stock, MCX, MPX, BLK . SIG made several changes to the stock, and on the model I’m reviewing today, it is a slightly different stock than the one that came on the first 556 samples. … The 556 is not of that lineage. He says that the new ones aren't Swiss made anyway and I like my Armalite Eagle Arms pre-ban better than the new SIG 556. Sig 556 for sale and auction. Le SIG-550 est le fusil d'assaut officiel de l'Armée suisse (Fusil d'Assaut ; F ass 90) fabriqué par Swiss Arms (anciennement SIG Arms AG). The stock features a removable end cap that allows for storage in the tube section. Koalorka 13:29, 14 August 2007 (UTC) I changed it. If I want to use a SIG, SWISS, or DDLES adapter I need to get a different lower. SWISS SIG PE57 BAYONET WITH FROG AND SCABBARD. Cheers. SIG 556 Classic. Description: Value: Calibre: 5.56 mm (.223 Rem.) This mold was called the "classic". I do not think that SIG is still making the collapsible AR15 style buttstock anymore on their rifles, though I understand that one may purchase an adapter and the necessary parts, even whilst retaining the side folding … The SIG SG 550 (SturmGewehr) is a Swiss assault rifle designed by Jürgen Baumann1 and Ennio Mattarelli around 1978 and produced by Schweizerische Industrie-Gesellschaft since 1986; production of the rifle is currently handled by SIG Sauer AG (formerly SAN Swiss Arms AG) with the privatization of SIG's firearms division in 2000. All Rights Reserved. KNS PRECISION SIG 556 PUSH BUTTON PIVOT PIN. If your model has the AR style threaded buffer end of the receiver, this kit will fit. The adjustable stock snaps and securely locks into a folded position with a length-of-pull that can be preset by the user. Hands-on with the 556R. Conçu dans les années 1980, il fut introduit progressivement dès 1988dans l'armée suisse, remplaçant ainsi le Stgw 57/Fass 57 (également construit par SIG). I was at a law enforcement conference this past week and I was complaining about the 556's quality control and cheap furniture to one of the Sig trainers there from the Sigarms Academy in Epping, NH. SIG 550 (Photo from Wikipedia) I am surprised they did not duplicate the “classic” 550 handguard exactly since the main selling point of this rifle is the look. Plus, the cost of the P556 plus the SIG stock is about $300 less than if I had purchased the SBR version of the 556 and I get to shoot … $629.00. It has a Swiss stock and also has the original stock included. (it's just to demonstrate the kind of magazines this lower uses) Also fits P556 pistol. This feature is made possible by a new stock interface into the trigger casing. Save Compare. The SIG550 series date back to the Swiss military’s adoption of the Stgw 90 assault rifle in 1983. PMAG 25 LR/SR GEN M3 WINDOW, 25RD 7.62x51MM. Some of us, however, are just quirky enough to lust after something a bit different. Out of stock. SIG 556 redirects to this ... the upper and lower receivers are interchangeable. out of stock (0) sig 556 classic 223rem 16" 10rd hi & md legal. Save Compare. The design is modeled on the SIG 550. from the leading swiss arms manufacturer. out of stock (0) sig 556 classic 223rem 16 10rd ma nj legal. 1930 E 3rd St. Ste #12 Tempe, AZ 85281. If I want to use a SIG, SWISS… The 556 was uniquely made for the American Commercial Market by SigArms USA and was not very well received commercially for what ever reason. More Details Buy. Stock Status In Stock (12) Sort By: Sig Sauer . Curious about this as well............if SIG corrects the problems I might very well purchase one. out of stock (0) sig 556 swat 223rem 16" 10rd hi & md legal . But you say yours is accurate so yours does not … Other colours on request. KNS PRECISION SIG 556 PUSH BUTTON PIVOT PIN. Swiss Style Bayonet Lug & Pin for SIG 556 SWAT Rifle $ 24.95; Read more. Click on a term to search for related topics. Here is the AGP push button side folding stock for use on the SIG 556. Après maintenant vingt ans de service actif, le SIG 550 a été décliné en … Enjoy it. Some corrections are necessary in that 556 paragraph, I'll let you correct that. Sig did a revamp and changed the lower to accept the Swiss stock and lost the support ribs that your has. SG 550 / PE 90 Standard . Copyright © 1996-2021 AR15.COM LLC. Currently 5/5 Stars (1) Description: Designed specifically to fit the Swiss SIG SANs 550 / 551 / 552 as well as all USA SIG 556 & SIG 522 Series Rifles & Pistols. It seems at some point some real SIG 551A1s were imported and used the original Swiss magazines. My sample has storage compartments for batteries for optics. Romanian AK Barrel $ 284.95; Read more. 480-401-1515. Qty: Add to Cart See Details. You are able to store your proper paperwork, cleaning kit, batteries, etc in this section. Complete accessories, see attachment! AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Price $199.99. Sig Sauer P365 SAS 9mm micro-compact pistol. Price $35.00. The early ones had a canted top rail problem. Le SIG-556 est un fusil d'assaut développé en 2006 par SIG SAUER, Inc. dans leur siège d'Exeter, New Hampshire. Save Compare. SIG SAUER shaved a pound off the Classic model by incorporating the redesigned alloy trigger housing, AR style magazine and flash suppressor. Price $99.99. Save: 29%. Incorporating a refined version of Mikhail Kalashnikov’s uber … SIG SAUER Telescoping/Folding Stock, MCX, MPX, BLK . SIG … Romanian AK-47 Kit PM90S Cal.7.62 with 12″ Chrome Lined Hammer Forged Barrel $ … SIG 551 / 552 / 553 Rear Sight Assembly and Weldment - Black, SIG 551 Gas Piston and Recoil Rod Assembly, SIG 551 / 552 / 553 / 556 Folding Stock - Black, Sig 550 / 551 / 552 / 553 Front Sight Assembly - Black, Sig 550 / 551 / 552 / 553 Rear Sight Assembly and Weldment - Black, Sig 551 Barrel, Gas Block, & Front Sight - 16" LB Barrel, Sig 551 LB .223 Barrel Complete Front End Assembly, Sig P226 Barrel Slide Assembly Parts Kit - F.A.T.S Laser Kit, Sig 551 Gas Block and Front Sight Assembly - Black, SIG 552 Bolt Carrier and Gas Piston Assembly, SIG 551 / 553 / 556 Bolt Carrier - 5.56 - F/A. 34 5579 87; 4) Foldable piston visor. I hope this is true I'd love a non crappy swissyer Sig 556. I prefer this stock to the first generation type that SIG shipped from the factory on their 556 and 522 rifles. out of stock (2) sig … It has a right hand only charging handle, a stock … Works with SIG 550, 551, 552, 553, and SIG Sauer 556. Griffin Tactical SIG 55X Series Ergonomic Charging Handle $ 69.95; Read more. SIG 556. I was one of the people who paid top dollar for my Classic, $1750.00. Stocks, rails & hand protection Stocks, rails & hand protection. More Details Buy. Fits any buffer tube and stock. out of stock (0) sig 556 swat 223rem 16" 10rd hi & md legal . Earlier this month SIG announced an the new SIG 556 Classic. Sig Sauer Swiss Stock Assembly, Black, Folding, W/ STK-556-SWISS not yet rated review & rate 0 Questions & 0 Answers Product Discontinued by Manufacturer from the leading swiss arms manufacturer. SIG made several changes to the stock, and on the model I’m reviewing today, it is a slightly different stock than the one that came on the first 556 samples. out of stock (0) sig 556 swat 223rem 16" 10rd ma nj ny & ct legal. MCX Stock Adapter . Stocks, rails and hand protection. My early 556 is ONLY compatible with an M4 style tube--OR a pig nose adapter and ACE stock system. The 556 was uniquely made for the American Commercial Market by SigArms USA and was not very well received commercially for what ever reason. Out of stock. The classic model wasn’t fancy. In this case, Sig delivers like none other. SWISS SIG PE57 BAYONET WITH FROG AND SCABBARD. More Details PMAG 25 M118 LR/SR GEN M3 WINDOW, 25RD 7.62x51MM. Add to Cart. Available in 5.56 NATO, the Classic features the original Swiss folding stock, as well as a polymer ergonomic forend. black (adjustable in 2 steps, each 2 cm) 34 553 070; green (adjustable in 2 steps, each 2 cm) 34 553 050; 2) Cheek rest to buttstock. It has the SIG 30 round polymer mag and a sling, as well as the original case. If I want to use a SIG, SWISS, or DDLES … Out of stock. Découvrez les répliques type SIG, fusils d’assaut utilisés par l'armée Suisse. Romanian AK-47 Kit PM90S Cal.7.62 with 12″ Chrome Lined Hammer Forged Barrel $ 975.99; Add to cart. Qty: Add to Cart See Details. Save: 29%. Save: $23.00. The SIG550 series date back to the Swiss military’s adoption of the Stgw 90 assault rifle in 1983. Price $21.80. Magazines, handles and bipods Magazines, handles and bipods. Save Compare. Contact us today! Conversion kits Conversion kits. From what I can see the primary difference is the swiss style folding stock and polymer handguard. Griffin Tactical SIG 55X Series Ergonomic Charging Handle $ 69.95; Read more. World renowned and the choice for many of the premier global military, law enforcement and commercial users. Price $38.95. More Details Buy. Any use of this content without express written consent is prohibited. 1) sliding shaft . Yours should have Swiss BCG but I am not 100% sure. Sig Sauer SIG556 5.56mm Police Trade Rifles (Good Condition) Notify Me When Available; Style: SIG556 G; Department: Firearms > Used Gun Collection; Sig Sauer SIG556xi Standard 5.56mm Adaptive … More Details Buy. Along considering customer reviews, extra areas that are good for product research are our How-To Articles, Product ventilation forums, and Product … The stock features a removable end cap that allows for storage in the tube section. It would be cheaper for them to just trade the earlier Sig 556 classic rifles for new ones with German/Swiss levels of QC and quality made Swiss stocks and sell off the returned rifles as used and/or factory 2nds and 3rds, with a prefix added onto the serial … Sig Sauer makes ARs as well, and the quality of the examples I have pawed over is superb. Our SIG stock adapter fits US and Swiss made 55x and 522 rifles. PE57 STYLE FLASH HIDER. More Details Buy. Hands-on with the 556R. Sig Sauer makes ARs as well, and the quality of the examples I have pawed over is superb. … Price $21.80. What I do know is yours has a CHF barrel witch is very nice. This is a USED SIG 556. Switch to Hybrid Mode. AK Rear Sight Block $ 74.99; Add to cart . Gatewood Supply Co is your Swiss Sig Sauer Sig 551 Sig 552 Sig 553, rifle, pistol, barrels, magazines, parts kits and accessories source. Early sig 556. Sell your Sig 556 for FREE today on GunsAmerica! The Swiss SIG 550, 551, and 553 series are the ones made for the Swiss Military in Switzerland. Price $21.80. It comes with the SIG mini optic as well as Iron sights. Switch to Hybrid Mode. out of stock (0) sig 556 swat 223rem 16" 10rd ma nj ny & ct legal. black (only for standard butt stock) for use with ZF 34 557 812; 3) MAGPUL CTR. It’s a SIG 550/556 rifle chambered in 7.62×39, and it accepts AK magazines. Trigger pull weight: 35 N (3,5 kg) Weight (empty) 4.100 g: Weight with (20 / 30 rounds) 4.440 g / 4.580 … All Rights Reserved |, HK G3 / HK91 Magazine - 20 Rounds - Aluminum, SIG 550 / 551 / 552 / 553 Bolt Head - 5.56, HK XM8 Handguard Assembly with Weapon Light. Save Compare. Price $199.99. Your FFL dealer must … Other colours on request. Sig Sauer. The classic model wasn’t fancy. (all NFA rules apply) You can buy barreled upper receivers from Sig and put this on one of those for … Fixed / Folding Stock … It has a 4 positon stock, heavy barrel with a tri-compensator, cheekrest, national match sights, a Trijicon on a see through mount, factory OD green with three magazines in the same color and a carry pouch and its a real Armalite. Price: $78.00. The Swiss SIG 550, 551, and 553 series are the ones made for the Swiss Military in Switzerland. I’m going the route of the dedicated SIG stock because it folds and I want to keep this gun as compact as possible. Worse, there were QC problems with some having canted top rails, which was a problem with the serial numbered upper, not the removable rail. ↑ SIG Assault Rifles SG 550 / 551 Technical Data and Test Documentation ↑ Swiss Arms Price List 2008 ↑ SIG SAUER website Subscribe to our newsletter your@email.com © 2021 AGP Arms, Inc. Restricted in some areas Collapsing/Telescoping Stock - MCX/MPX . Fits any AR-15 stock, including the Magpul UBR stock. Buy a Sig 556 online. Description. SG 550 (stock extended): 998 mm (39.3 in) SG 550 (stock folded): 772 mm (30.4 in) SG 551 (stock extended): 833 mm (32.8 in) ... AK-47 magazines (SG 553 R, SIG 556 R) Sights: Rear: rotating diopter drum with tritium night inserts; front: hooded post with folding night post 540 mm (21.3 in) sight radius (SG 550) 466 mm (18.3 in) sight radius (SG 551) History Development. My SIG Sauer 556 SBR Swiss 550 stock Swiss 550 handguard cutdown by DDLES Aurora Sights Aimpoint Micro H-1 in ADM low mount AAC Brakeout muzzle brake Lancer L5 magazine Disponibles en version courte pour le combat en milieu urbain ou pour les insertions tactiques en bâtiment (CQC), en version compacte destinée à l'assaut, mais aussi en version longue pour les tireurs de précision ! Fully-automatic version available on request (special authorisation required). For "Ban States" Optional pin can be inserted to fix the stock so it cannot fold. More Details Buy. SIG SRD 5.56 … Swiss Style Bayonet Lug & Pin for SIG 556 SWAT Rifle $ 24.95; Read more. Price $38.95. out of stock (0) sig 556 classic 5.56mm 16" tele od grn 30rd. MCX Stock Adapter . IN STOCK. Based on the previous SG 540, the SG 550 is … Optics Optics. Buy a Sig 556 online. Posted: 12/11/2012 9:13:55 AM EST Quoted: Ok, i get it now I think-- My early 556 is ONLY compatible with an M4 style tube--OR a pig nose adapter and ACE stock system. Description: Value: Calibre: 5.56 mm (.223 Rem.) The Classic’s sleek profile and compact length is enhanced by a 16’’ button rifled barrel. It has a right hand only charging handle, a stock I am … Ils équipent également les commandos de marine français. AK Rear Sight Block $ 74.99; Add to cart . With some horse-trading, I was able to acquire a SIG 556R classic model. out of stock (0) sig 556 7.62x39 16 certified pre owned. Have spare parts to sell? Switch to Threaded Mode. The initial 556 was visually unappealing with an AR stock and a heavy, ugly fishgill stock. Price $21.80. Search Results for: "sig 556" The Sig Sauer Store Shop now. Sell your Sig 556 for FREE today on GunsAmerica! On my 556 Classic it locks up tight. He said he does not like the 556 for the same reasons. Price $35.00. Add to Cart. In this case, Sig delivers like none other. Price $19.95. It looks cooler too, no? More Details Buy. Sig Sauer Fixed / Folding Stock - MCX / MPX. SIG 556. Buy Sig Sauer SIG556 Parts Factory replacement gun parts, accessories and gunsmithing service on most manufacturers including Browning, Winchester, FN America, Beretta, Benelli Franchi, Stoeger, Remington, Bushmaster, Marlin, Sig Sauer, HK and many more. Email this Page. Complete accessories, see attachment! Thread Tools: Show Printable Version. SG 550 / PE 90 Standard . For both the masses and the 55x fanbois, Sig started off badly. The new SIG 556 series utilized AR magazines, and as mentioned, the 556R used standard AK magazines. IN STOCK. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Price $199.99. Price $99.99. I was at a law enforcement conference this past week and I was complaining about the 556's quality control and cheap furniture to one of the Sig trainers there from the Sigarms Academy in Epping, NH. Email this Page. sig 556 lower with folding stock, sig 556 metal lower, sig 556 swiss style lower, sig ar556 lowers, sig sg 550 sniper rifle for sale, sig556 lower, will a 550 lower fit on a 556. More Details PMAG 25 M118 LR/SR GEN M3 WINDOW, 25RD 7.62x51MM. Original Swiss SIG 550 Lower Receiver with Swiss Internals. SIG 556 redirects to this ... the upper and lower receivers are interchangeable. You are able to store your proper paperwork, cleaning kit, batteries, etc in this section. Sig Sauer P365 9mm magazine, 12 rnd. Googled this for the fun of it. PMAG 25 LR/SR GEN M3 WINDOW, 25RD 7.62x51MM. Koalorka 13:29, 14 August 2007 (UTC) I changed it. Display Modes: Linear Mode . from the leading swiss arms manufacturer. Sale: $55.00. ↑ Swiss Arms Price List 2008 ↑ www.snipercountry.de SIG 550 bzw. (all NFA rules apply) (takes AR-15 mags) Magazine in photos is not included. Some corrections are necessary in that 556 paragraph, I'll let you correct that. from the leading swiss arms manufacturer. Price $99.99. Romanian AK Barrel $ 284.95; Read more. 31s can be found with "trooper tags" underneath the steel butt plate at the rear end of the stock… Save Compare. AK Magazine Release Lever Kit $ 34.95; Add to cart. The SIG 550 is an assault rifle manufactured by Swiss Arms AG (formerly Schweizerische Industrie Gesellschaft) of Neuhausen, Switzerland (SG is an abbreviation for Sturmgewehr, or "assault rifle").The rifle is based on the earlier 5.56mm SG 540 and is also known as the Fass 90 (Fusil d'assaut 90 / Fucile d'assalto 90) in French / Italian or Stgw 90 in German (Sturmgewehr … My early 556 is ONLY compatible with an M4 style tube--OR a pig nose adapter and ACE stock system. Posted: 12/11/2012 9:13:55 AM EST Quoted: Ok, i get it now I think-- My early 556 is ONLY compatible with an M4 style tube--OR a pig nose adapter and ACE stock system. Metric Roll Pin (1) for SIG 550/1/2 & 556 Front Sight Adjustment Wheel (Taper per product instructions.) He says that the new ones aren't Swiss made anyway and I like my Armalite Eagle Arms pre-ban better than the new SIG 556. More Details Buy. P.S.- I know I can buy the furniture from Colorado Gun Sales but I refuse to pay $1000+ for a rifle with poor quality control and parts and then sink another $500+ into it. Sale: $55.00. Save Compare. Price $199.99. I believe some of the components of the 556 are Swiss made such as the bolt/bolt carrier and upper receiver housing and are assembles in the USA. I searched long and hard for one of these rifles since SIG discontinued them some time ago. Add to Cart. Belts & bags Belts & bags. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. If your model has the AR style threaded buffer end of the receiver, this kit will fit. sig 556 lower with folding stock, sig 556 metal lower, sig 556 swiss style lower, sig ar556 lowers, sig sg 550 sniper rifle for sale, sig556 lower, will a 550 lower fit on a 556. SIG SAUER Stock Adapter - 1913 Interface Folding Knuckle . out of stock (0) sig 556 classic 223rem 16" 10rd hi & md legal. Add to Cart. Price: $78.00. Click on a term to search for related topics. Some K. 31/Kar. PE57 STYLE FLASH HIDER. SIG SAUER Stock Adapter - 1913 Interface Folding Knuckle . We have a short Picatinny rail on the top and bottom of the polymer fore end. Accessories The accessories for your mission . The stock is a hinged folding Swiss-style that is able to collapse for ease of transportation or use in tight quarters. SIG SAUER 556 : With various attachments : 2011 Resident Evil: The Mercenaries 3D: Fitted with EOTech holographic sight : 2011 Counter-Strike: Global Offensive "SG 553" ACOG scope; incorrectly fires in full-auto : 2012 Call of Duty: Black Ops II "SWAT 556" SIG556 HOLO with green furniture; incorrectly fires in automatic and 3-round burst modes : 2012 State of Decay "556S" … Restricted in some areas Collapsing/Telescoping Stock - MCX/MPX . US made: 556 Classic, 556R, 556xi, 522. With that being said it sounds like you got a decent deal on a factory SigArms Carbine. The 556 series made a few changes to the 550 platform for an American audience, but the SIG 556R is something truly unique. If I want to use a SIG, SWISS, or DDLES adapter I need to get a different lower. Search Results for: "sig 556" The Sig Sauer Store Shop now. Buy Sig Sauer SIG556 Parts Factory replacement gun parts, accessories and gunsmithing service on most manufacturers including Browning, Winchester, FN America, Beretta, Benelli Franchi, Stoeger, Remington, Bushmaster, Marlin, Sig Sauer, HK and many more. SIG SRD 5.56 … out of stock (0) sig 556 classic 223rem 16 10rd ma nj legal. Assault Rifle. out of stock (0) sig 556 7.62x39 16 certified pre owned. © 2012 - 2020 Gatewood Supply Company, LLC. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Use a Dremel to square the inside of the latch and cut the top 1/8” Slides in perfectly, install supplied rolled pin, locks up tight and right. Sturmgewehr 90 (German) ↑ biggerhammer.net Kern 4x24 telescopic sight of the Swiss Army. Price $99.99. Cheers. I believe some of the components of the 556 are Swiss made such as the bolt/bolt carrier and upper receiver housing and are assembles in the USA. Sig Sauer 556 SWAT Rifle & Swiss Folding Stock MFR# R556-16B-PS-RD UPC: 0798681418145 The next generation in the evolution of the SIG556 platform, the SIG556 Patrol Rifle integrates the accuracy of a 16” barrel with the maneuverability and quick pointing ergonomics of the SIG556 Short in a compact, no-nonsense package. If you are enthusiastic in writing reviews on any of the Sig Sauer 552 Commando Swiss Arms you've purchase and have experience with, we incite you to attain therefore to back up others who are looking at buying the similar products. AK Magazine Release Lever Kit $ 34.95; Add to cart. My sample has storage compartments for batteries for optics. Here is the AGP push button side folding stock for use on the SIG 556. Won't the Swiss parts just raise the cost back up? It shows signs of use as the photos show around the ejection port, the rest of the rifle is in excellent condition with a low round count. With some horse-trading, I was able to acquire a SIG 556R classic model. The present iteration of the 551 and the 556 Classic, Swat, "R", and Patrol models all use the folding swiss style buttstock. But he said that Sig recently decided to use a Swiss made buttstock (non collapsible) and handguard and that we should start seeing rifles with higher quality Swiss made furniture trickle down to dealers. Switch to Threaded Mode. Assault Rifle. Price $19.95. Description: **LAST ONE** New SIG SAUER 556 lower receiver with Swiss folding stock for 556 rifle or P556 pistol. The 556 Classic marked the first time a Swiss 550-style gun had become available to American consumers in any significant numbers during the past 20 … The stocks are usually in average condition, but the barrel and bolt assembly are usually in very good condition because [citation needed] the Swiss used a special gun grease known as Waffenfett instead of gun cleaning oil, and the issued ammunition was non-corrosive. It seems at some point some real SIG 551A1s were imported and used the original Swiss magazines. The 556 is not of that lineage. With that being said it sounds like you got a decent deal on a factory SigArms Carbine. The adapter requires minor modification to align in the latch catch. Fully-automatic version available on request (special authorisation required). Fits Commercial and MIL-spec buffer tubes. Save Compare. THIS PRODUCT IS … Swiss made: SG 550, SG 551, SG 552, SG 553. Sig 556 for sale and auction. It has a 4 positon stock, heavy barrel with a tri-compensator, cheekrest, national match sights, a Trijicon on a see through mount, factory OD green with three magazines in the same color and a carry pouch and its a real Armalite. We have a short Picatinny rail on the top and bottom of the polymer fore end. Display Modes: Linear Mode .