Luth-AR RKB203 20 Fluted Bull Barrel AR-15 Rifle Kit with Fixed Stock

Description

Product Overview

The Luth-AR RKB203 is a complete AR-15 rifle build kit (no stripped lower receiver required) designed around a 20 in fluted bull barrel upper. It pairs a 20 in 416 SS bull barrel with a rifle gas setup, KeyMod palm handguard, A3 assembled upper receiver, and a .223/5.56 bolt carrier group. The kit also includes the complete lower parts kit plus an MBA-1 fixed rifle buttstock assembly so you can finish your own custom build with a Mil-Spec stripped lower you supply.

Key Features

• 20 in fluted bull barrel for strong balance and a rigid feel
• 416 SST barrel steel with 1:9 RH twist and 1/2x28 threading
• Rifle-length gas system with a .936 gas block configuration
• A3 assembled upper receiver and a fully assembled .223/5.56 bolt carrier group
• 15 KeyMod palm handguard with included barrel nut
• Includes A2 flash hider for standard AR-15 muzzle configuration

Build your own AR-15 rifle with the RKB203 upper and parts set, then add the stripped lower receiver to complete the platform.