New Frontier .40 S&W / 10mm Bolt Carrier Group – Free Shipping!


Out of stock

SKU: nf40_10_bcg Category:


AR-40 .40 S&W / 10mm Bolt Carrier Group – BCG (Glock Compatible)

US Made 8620 steel with mag phosphate finish

Ramped carrier to work with both 9mm and standard AR hammers

Precision milled for use with Glock style lower receivers

This bolt can also be used in a large frame lower to run 10mm

**NOTE:  Many Aftermarket drop in triggers use modified hammers which may not reset properly, or hit the firing pin square on the carrier which could cause firing pins to bind and snap.  We recommend using only MILSPEC hammers with any 9mm, .40, or .45 blowback bolt carrier groups.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.