Bravo Company MK2 Receiver Extension Mil-Spec Buffer Tube for AR

Add a layer of durability for your favorite rifle with the Bravo CompanyA(R) MK2 Receiver Extension Mil-Spec Buffer Tube for AR. Compatible with Mil-Spec lower receivers, this buffer tube features durable 7075-T6 aluminum construction with a hard coat Type III anodized corrosion-resistant finish for unmatched durability and strength for a lifetime of reliable field use. Requires an M16 rifle action spring and specific BCM MK2 buffer. Carbine and rifle buffers will NOT work. Made in USA.