Proof Research AR-15 Barrel 223 Wylde 20" 1:8 Twist 1/2-28 Stainless Steel - 101704

Drop-in stainless steel barrel for AR-15 compatible firearms chambered in 223 Wylde with a 20" length and 1:8 twist rate. Features Proof Research's Caliber Matched Gas System (CAMGAS) tuned specifically for the cartridge and barrel length to improve performance and reliability. Threaded muzzle with 1/2-28 pitch for suppressor or muzzle device attachment.