US Made 8620 steel with mag phosphate finish
Precision milled for use with Glock style or traditional AR-45 lower receivers
**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.
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