Built on the versatile Bushmaster modular MSR upper platform, this Patrolman's Carbine (M4 A3) upper receiver assembly has a 16" M4-profile barrel made of 4150 chrome-moly-vanadium steel with hard chrome-lining in both bore and chamber for extended barrel life. It has an A2 birdcage-type flash hider, and front sight post with bayonet lug. The flattop receiver features integral brass deflectors and a black hard anodized finish. Each bolt carrier assembly is factory headspaced, proofed, test fired, and ready to use on your on existing MSR-type lower receiver.
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Type : Complete
Caliber : 223 Remington/5.56 NATO
Sights : Flip Up
Barrel Length : 16"
Barrel Material : 4150 Chrome Moly Vanadium Steel
Barrel Description : Chrome-Lined
Barrel Finish : Black
Receiver Description : A3
Receiver Finish : Black Hard Coat Anodized
Handguards : Carbine Length
Handguard Finish : Black
Barrel Length Range : 16.00" to 17.99"
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