5.56 16" Anderson MFG. Chrome Lined 41V50 11595E machine gun steel pre-ban 1x7 twist mid-length barrel with M4 feedramp cuts and .750 profile in front and standard under the handguards Comes with A2 FSB, barrel nut, and handguard cap. Does NOT include front sight post, detent, spring or front sling and rivet Always have a competent gunsmith assemble your barrel or rifle kit and headspace your barrel before first use. Using a rifle put together incorrectly or assembled using incorrect or modified parts can result in a damaged rifle, personal injury, death, or damage to property.
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I had a hard time deciding between a 20" & this 16" barrel. I may yet assemble one in a 20" but this 16" by Anderson is a good choice for my intended purpose which is a somewhat hander rifle. Even though, it's only 4" shorter, it is a good bit easier to handle in a building clearance or a home defense type of situation than a 20" barrel AR 15 would be. I may yet assemble another upper in 20" barrel as a second upper for a AR15/M16a2 set-up. I'm very glad I purchased this 16" though as the barrel was at a dang good price point. I will be back for the M16a1 build I'm planning with a 20" barrel.