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Springfield Armory showed off its new M1A SOCOM II carbine (or SOCOM II M1A carbine) with Cluster Rail System at SHOT Show 2005. The SOCOM II M1A carbine is basically just the SOCOM 16 carbine with a 4-sided (or "quad-rail") Mil-Std-1913 rail system/forend rail tube attached. If there’s another difference between the two products, DefRev isn’t aware of it, yet. The SOCOM II carbine DefenseReview photographed and handled featured an urban tiger-stripe camo pattern. Pictures are below.
The Springfield Armory M1A SOCOM II carbine’s purpose is CQB (Close Quarters Battle) and short-to-medium-range interdiction where
7.62x51mm (.308 Winchester) rifle/carbine power is required (defeating vehicles, barriers, hostile subjects wearing tactical body armor/hard armor plates, etc.). The SOCOM II gives the operator M14/M1A-level punch in a lighter, more compact package/weapons envelope.
Barrel length on the Springfield Armory SOCOM II carbine is 16.25" (1:11 right-hand twist, six-groove rifling). OA weapon weight is 10.9 lbs without scope. OA weapon length is 37.25" long. Like any other M14/M1A rifle or carbine, the SOCOM II is gas-operated (air-cooled) and utilizes a rotating bolt. Operation is semi-auto-only (box magazine-fed). Trigger pull weight is 5-6 lbs. Magazine capacity is 10 rounds (box magazine).
The Springfield Armory SOCOM II M1A carbine’s rear sight features an enlarged military aperture and is MOA-click-adjustable for both windage and elevation. The front sight sports a tritium post.