This Receiver Extension is for your MK4.
“Rock Island TM22LA20 TM22 Full Size 22 LR 10+1 20″ Black Anodized Barrel, Black Anodized Picatinny Rail Aluminum Receiver, M-LOK Handguards, Black Anodized Aluminum Fixed Stock, Ambidextrous” has been added to your cart. View cart
AR Buffer System
CMMG 55CA9D7 Receiver Extension MK4 Black Steel AR Platform
$37.00
CMMG 55CA9D7 Receiver Extension MK4 Black Steel AR Platform
Availability: In stock
SKU: TSW|48556
Category: AR Buffer System
CMMG
Weight | 1 lbs |
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Dimensions | 6 × 2.5 × 2 in |
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