KAC UPPER RECEIVER KIT, SR-15 CQB MOD 2, 11.5″ BARREL, URX 4 M-LOK Knights Armament Company P/N:31963

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The SR-15 E3 MOD 2 series’ 5.56mm NATO barrel is manufactured for military grade durability, and is free-floated inside a URX4 M-LOK handguard. An improved E3 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the Knight’s line of 5.56mm QDC Signature Reduction Devices.

Specifications:
Barrel: 11.5” (29 cm) 1:7 Twist, Hammer Forged, Chrome Lined
Caliber: 5.56mm NATO
Weight: 3.8lbs (1.7kg)
Length: 20.5” (52cm) OAL

Additional information

Weight 116 oz
Dimensions 28 × 6 × 6 in

6 reviews for KAC UPPER RECEIVER KIT, SR-15 CQB MOD 2, 11.5″ BARREL, URX 4 M-LOK Knights Armament Company P/N:31963

  1. camdock91 (verified owner)

    Fit and finish of this upper is top notch. I am so stoked I was able to get one. I just ran 200ish rounds through it today along with an LMT mars lower. Knights quality is top tier. Thanks big tex

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