This Receiver Extension is for your MK4.
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
CMMG
| Weight | 1 lbs |
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| Dimensions | 6 × 2.5 × 2 in |
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