Sorry, your blog cannot share posts by email. The National Firearms Association of Canada considered pursuit of the matter through the legal system. The rifle is based on the earlier 5.56×45mm NATO SIG SG 540. Over 600,000 rifles have been delivered since then and production for the military has now ceased.[1]. Another option is to buy the 556 SWAT … The trigger pull is approximately 35 N (7.9 lbf). My plan was to buy a second lower (which I did) and then get a P556 and SBR it. 556-10IN-SBR-BEAUTY1_phatch Sig Sauer’s versatile, CQB-ready SIG556 SBR brings lightweight, compact and accurate firepower to bear for SWAT and patrol officers while offering excellent ergonomics and the ablity to use standard AR-type magazines. The SIG 522LR is a .22-caliber sporting rifle styled after the SG 551. Description: Designed specifically to fit the Swiss SIG SANs 550 / 551 / 552 as well as all USA SIG 556 & SIG 522 Series Rifles & Pistols. The handguards were also changed and the bipod removed. In building and room-clearing situations, SBRs make it easier to navigate while increasing weapon retention. The SG 552 Commando version with integral Picatinny rail and accessories. Tactical Life Gun Magazine: Gun News and Gun Reviews, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window), Click to email this to a friend (Opens in new window), Winchester Super X4: Modern 12-Gauge in Old School Woodland Camo, CZ Hammer Classic: Go Full Doc Holliday With the Side-by-Side 12-Gauge, Bergara BMR: Mirco Rimfire Brings Big Features in Small Platform, Ruger Custom Shop Precision Rifle Launches in 6mm Creedmoor, Night Vision 101: The Pros and Cons of Single-Tube vs Multi-Tube NODs, Stay Ready With the High Speed Gear Compact ReVive Medical Pouch, Mepro RDS Pro V2: Built Mil-Spec Tough and Fast on Target, WATCH: Range Time With the Primary Arms GLx 2.5-10×44 FFP Scope. The modifications are available as a conversion kit that includes a new bolt carrier, charging handle, recoil spring and gas tube. The barrels, BCGs, and receivers are beautiful on the Swiss rifles. SIG now offers the P556 in both Classic and SWAT flavors with the SB15 Stabilizing brace pre-attached. Emphasis was placed on modularity; the weapon family was to include several variants of the base design, including a compact carbine that would be issued to rear-echelon and support troops, command staff, vehicle crews, special forces personnel and paratroopers. Guns & Weapons for Law Enforcement Magazine. As the piston is driven back, the gas port and the L-shaped channel move out of alignment, cutting off the supply of gas to the cylinder. The SG 550/551/552/553 are also available in semi-automatic only configurations, intended for the civilian shooting market. The gas block integrates an adjustable gas regulator, the front sight with a flip-up night sight post, and the bayonet lug on the flash suppressor. ... M4-2000 Suppressor on Sig P556 SBR and Sig 556 - Duration: 1:33. This semi-automatic rifle is chambered in the ever-popular 5.56mm NATO and combines some of the best aspects of both the AR and the original Swiss battle rifle on which it is based. In 1978, the Swiss armed forces formulated requirements for a successor to the Stgw 57 battle rifle (known commercially as the SG 510) using the 7.5×55mm Schmidt–Rubin cartridge. Due to U.S. import regulations, they are imported as a pistol. The rifled barrel has 6 right-hand grooves and the Swiss Army specification 254 mm (1:10 in) rifling twist rate is optimized for Swiss military GP 90 ammunition. Once inside the gas cylinder, propellant gases pass through an L-shaped channel machined in the piston head and are directed forward towards the gas valve.