ATI Military Buffer Tube Assembly
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The Advanced Technology Int. Military Buffer Tube Assembly fits most AR-15 and AR variants. However, it is not compatible with .308 rifles. Constructed from military type 3 anodized, 6061 T6 aluminum, this buffer tube is next to indestructible. Inside this package you get a steel military grade-E-coated castle nut and locking ring, along with an AR-15 recoil plug and buffer spring. This product can be used to upgrade an existing AR-15 with a carbine collapsible stock system – or, to build a new carbine rifle. The Mil-Spec Diameter Buffer tube can accept an M4-style adjustable carbine buttstock. Additionally, this assembly is made in the USA.