Current lead time for custom uppers is 4 weeks
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Begin your build by adding a part below. Your progress will be saved automatically. Utilize the convenient filters to quickly locate the parts you need. Access your saved builds or start a new build from your Buildlist page. Don't see the part you want for your custom build? Request it through our Request A Part form.

BCM Bolt Carrier Group (MPI) - Auto

BCM® (MPI) complete bolt carrier group is fully assembled.
$184.99

BCM Low Profile Gas Block .750

BCM® Low Profile Gas Block for AR15, M16, M4, M4A1.
$42.61

BCM M4 Upper Receiver - DEMO/Scratched

The upper comes unassembled, but complete with BCM forward assist assembly and ejection port cover door assembly. You must assemble it. (Assembly required) (all parts, but you will have to assemble together)
$79.95

Geissele Reliability Enhanced Bolt Carrier

$145.00

JP EnhancedBolt Assembly

JP's proprietary bolt design, the JP EnhancedBolt™ is compatible with any AR-15 platform using a Mil-spec bolt carrier and sub-components.
$125.35

Radian RAPTOR-LT Ambidextrous Charging Handle

Utilizing the same patented ambidextrous functionality as its predecessor, the Raptor-LT handles are machined from 7075 aluminum, MILSPEC Type III hard anodized, then over-molded with high-strength, fiberglass reinforced polymer for the ultimate combination of strength, weight, and durability
$70.99
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Min: $8.00 Max: $550.00
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