Cmmg Receiver Extension Mk4


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The CMMG AR-15 MK4 Carbine Length Receiver Extension is the perfect must have accessory for your next AR-15 build. The CMMG tube is constructed from high quality aluminum and features a hard coat anodized matte black finish.

Features :

  • For AR-15 Rifle builds
  • Constructed from aluminum
Weight 0.25 oz
Dimensions 9.00 × 4.50 × 1.12 in