Acme

16" 450 Bushmaster Complete Upper

Barrel: 16" 4150 Parkerized Heavy Barrel
Twist: 1:24
Caliber: 450 Bushmaster
12" Free Float Handguard
ACME AR-15 Upper Receiver

Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride Finish

***Builds may take 2-4 weeks from order to shipping***