Gleamio competition. Enter to Win Complete 5.56 Upper Assembly September 2019 on Best of Gleam.

This BCA Complete Upper Assembly has a 16″ m4 contour barrel made out of 4150 chrome moly vanadium steel with 1:7 twist rate and a  mid-length gas system. The assembly includes a 15″ MLOK rail, an m4 flat top forged upper receiver with forward assist, a BCA bolt carrier group, birdcage flash hider and charging handle. It is chambered in 5.56 NATO and machined with M4 feed ramps in barrel extension.

The BCA upper assembly, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and upper receiver assemblies includes test firing prior to approval and shipment. This upper assembly is also backed by our BCA limited lifetime warranty.

Choose an upper assembly designed by a U.S. company and made in the U.S.A. Choose BCA.

*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.


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