A 16-inch AR-15 barrel chambered in 5.56 NATO with a 1:8 twist rate. The 16-inch length keeps the barrel in non-NFA rifle territory — no SBR paperwork — and the 5.56 NATO chamber also fires .223 Remington commercial ammo without modification.

The 1:8 twist is the most versatile of the common AR-15 twist rates — it stabilizes a wide bullet-weight range, roughly 55 to 77 grains, so you can run light varmint loads and heavy match loads on the same barrel without swapping anything.

Features:

• 16-inch length — non-NFA, no SBR registration required
• 5.56 NATO chamber, accepts .223 Remington
• 1:8 twist — stabilizes 55-77 grain bullets
• M4 contour profile
• Standard AR-15 platform fit

Intended for a standard AR-15 upper. Confirm your gas system length, handguard inner diameter, and muzzle thread spec (1/2x28) match your build before ordering. Compatible with mid-length and carbine-length gas systems depending on dimple location.