Geissele Cold Hammer Forged 5.56 NATO 11.5" 1:7" 1/2x28 Chrome Lined Barrel 05-2986

Geissele Cold Hammer Forged 5.56 NATO 11.5" 1:7" 1/2x28 Chrome Lined Barrel 05-2986 is built around a forging process that shapes accuracy into the barrel before it ever sees a rifle. Cold hammer forging compresses the rifling into the bore under extreme pressure rather than cutting it, producing tighter, more consistent lands and grooves than button or cut rifling typically achieves — the kind of consistency that holds accuracy steady well past the round counts where lesser barrels start to open up.

This 11.5" CHF Barrel carries a 1:7 twist chambered in 5.56 NATO, machined in Geissele's tapered profile with a carbine-length gas system sized specifically for this barrel length. Chrome moly vanadium steel forms the base material, chrome-lined bore included, so corrosion resistance and heat tolerance stay high even under sustained strings of fire. Every Geissele 11.5 barrel produced at this length is High Pressure Tested and Magnetic Particle Inspected before it ships, catching material flaws that wouldn't show up until a barrel was already in service.

M4 feed ramps ensure reliable feeding across magazine types, and the manganese phosphate finish adds another layer of corrosion protection on top of the chrome lining. This 11.5 Cold hammer forged barrel is built short enough for SBR and pistol-length configurations while holding to the same mechanical standards Geissele applies across its full-length rifle barrels.

Key Features:

• 11.5" length, 1:7 twist, 5.56 NATO chamber
• Cold hammer forged rifling for consistent accuracy
• Geissele Taper Profile contour
• Carbine-length gas system
• Chrome moly vanadium steel, chrome-lined bore
• Manganese phosphate finish
• M4 feedramp barrel extension
• High Pressure Tested and Magnetic Particle Inspected

This Geissele barrel delivers the accuracy and durability of Geissele's full-size builds in a length made for compact, hard-use configurations, backed by 05-2986 as its part number for quick reference.