Radical Firearms 18" .223 Wylde 1:8 Rifle Length HBAR Barreled Upper - 15" Primary Arms Exclusive M-LOK Rail and Zero Impulse Brake
Includes the Radical Firearms/Primary Arms Exclusive M-LOK Handguard. Crafted from 6063-T6 aluminum and hardcoat anodized a deep black, this tough, durable rail offer a slim, modular profile. Large cooling holes along the rail reduce weight and aid in rapid cooling. Take advantage of M-LOK positions along the 3, 6, and 9 o’clock of the rail for all your favorite gear. An uninterrupted M1913 Picatinny top rail offers space to mount optics, sights, and other accessories with ease.
NOTE: This barreled upper does not include a bolt carrier group or charging handle.
- 18" 416R stainless steel match grade barrel
- Chambered in .223 Wylde with 1:8 twist rate
- 1/2x28 Zero Impulse Muzzle Brake
- 15" free float Radical Firearms/ Primary Arms Exclusive M-LOK Rail
- Gen 3 rail mounting system
- Made in the U.S.A. in Stafford, Texas!
Ratings & Reviews
A great 18" heavy barrel that is very accurate.
by Joshua -
I bought this upper for a build I completed. I have always wanted an 18" barrel for my primary AR 15. I took it out to the desert this past weekend. Wow, what an accurate rifle. First 2 shots right on top of one another. I was using IMI 62 grain penetrators. It also shot the Freedom Munitions factory new ammo just as well. If you've ever wanted a quality 18" AR bull barrel at a reasonable price. This one should be considered. I will be coming back to Primary Arms in the future.