Paired with 5/8 x 24 muzzle threads, this setup provides heavy barrel accuracy with good heat management.
33+ 20 Inch 5.56 Barrel. 508 mm (20.0 in) source(s): Rated 4.50 out of 5 based on 2 customer ratings.
Ar15 5 56 Stainless Spiral Fluted Bull Complete Upper 20 Inch Upper Part Ar15 Rifle Ar 15 from ar15depot.com
That depends on what you mean by optimal. With an eight inch barrel, please. Imbel ia2 5.56 assault rifle is gas operated, select fire weapon.
Imbel ia2 5.56 assault rifle is gas operated, select fire weapon.
Barrels labeled 5.56 can shoot both 5.56x45 nato and.223 remington. In 223 remington/5.56 nato, velocity versus barrel length: What are you trying to achieve. Pro chronopal chronograph test taken:
