Luth-AR Complete AR-15 Rifle Kit 20" Bull Barrel with Adjustable Stock

Complete AR-15 rifle build kit featuring a 20" fluted bull barrel upper receiver with 15" KeyMod handguard. Kit includes fully assembled upper, choice of MBA-1 or MBA-3 adjustable buttstock assembly, and complete lower parts kit. Contains everything needed to build a complete AR-15 rifle except the stripped lower receiver. Compatible with standard AR-15 platform builds.