KAK Industry K-SPEC Enhanced 5.56 BCG FDE

An enhanced FDE BCG with:

• Chrome Lined Carrier
• 9310 MPI NP3 Coated Bolt
• Dual S7 Tool Steel, Phosphate coated Ejectors
• 4130 billet NP3 Coated Gas Key
• 4140 NP3 coated Cam Pin
• 4140 Phosphate coated Extractor
• Sand cutter cuts