Spikes Tactical SLA500R 6-Position Mil-Spec Buffer Tube

Description

Every AR lower needs a receiver extension you can trust, and the Spikes Tactical SLA500R is one of those parts you bolt on and forget about. It's CNC machined from forged 7075-T6 aluminum, which is the stronger stuff compared to the cast or 6061 tubes floating around out there. Spike's runs a Type III hardcoat anodized finish inside and out, so the surface holds up to years of stock cycling and the elements without wearing thin.

What Sets the SLA500R Buffer Tube Apart

One of the nicer touches here is the dry film lube applied inside and out. That coating cuts down on friction as the buffer and spring cycle, which means smoother running and less wear over the long haul. The tube runs mil-spec diameter, so it pairs up with the huge world of mil-spec collapsible stocks out there. It measures 7.25 inches long with six adjustment positions and tips the scale at a light 3.6 ounces.

Dialing In Your Fit With the Spikes Tactical SLA500R

The six positions are laser engraved with numbers, and those markers are meant to line up in the little window on your collapsible stock so you can find the same length of pull every time. Whether you're setting up for a bulky jacket in the cold or running lighter in the summer, getting back to your preferred position is quick and repeatable. It's a small feature that pays off when more than one person shoots the same rifle.

A Dependable Base for Any AR Build

This is a bare buffer tube, so it's built for folks putting together a lower from scratch or swapping out a worn or lower-grade extension. Keep in mind it does not include a buffer, spring, castle nut, or end plate, so plan on grabbing those separately if you don't already have them on hand. Spikes Tactical backs the tube with their lifetime warranty, which tells you plenty about how they feel about the build quality. For the money, it's a straightforward, well-made piece that quietly does its job build after build.