Knight’s Armament SR-15 CQB 11.5″ Mod 2 M-LOK Upper Receiver Group – E3.2 Bolt
KAC PN 31963
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.
Ships complete with bolt carrier group, charging handle, front and rear Micro BUIS (PN 25654 and 25660), HH buffer (PN 21057) and 5-Slot M-LOK Rail (PN 31912).
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
All NFA rules apply
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Josh B. –
As a owner of a sr15 I have a unpopular opinion, the super duty 11.5 is better.
Joshua P. (verified owner) –
Had to pull the trigger on this upper – u only live once .. this is my 2nd KAC upper from RooftopDefense
Matt D. (verified owner) –
Top notch service from Sol and the boys! Super fast shipping and great communication! First time purchasing from RoofTop but won’t be the last! As far as the upper goes, it a KAC. Nuff said.
Shawn J. (verified owner) –
As it turns out, the poors don’t want me to shoot the dick off any horse flies with this thing. Thanks Sol for accusing me of fraud.
Shawn (verified owner) –
I can’t wait to flex on the poors and shoot the dick off a horse fly with this thing!