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Don't buy the nitride finish - KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group

by shep, Verified Owner from OH, United States Written on December 25, 2025
Review for KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group
KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group
KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group
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shep's Review of KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group

The coating is so bad that it's essentially a sandpaper-coated BCG. The coating is also not applied adequately on the gas key.

I don't have to tools to check if it's out of spec but it's the only BCG I've ever had to use the Forward Assist on straight out of the box. Rifle and BCG were was cleaned and lubed properly.
Would Recommend: No
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