Spike's Tactical 6-Position MIL-SPEC Buffer Tube Assembly

I bought this mil-spec buffer tube assembly for a lower build that paired this with an Aero Precision Gen 2 lower and B5 Sopmod milspec stock. The buffer tube and butt stock are extremely tight in that a lot of effort is needed to move the stock to different positions. Other B5 sopmod stocks move easily on milspec buffer tubes on my other lowers. Also the front of the buffer tube (end that threads into the lower) needed to be filed by about 1/16 inch for the upper and lower to be pinned together correctly as it was sticking out just slightly after threading the tube in.

Not my first or last. Good quality. Fast shipping

Another great Primary Arms purchase. The usual fast and accurate delivery experience.
You can't go wrong with the Spider, the milspec buffer tube assembly is top quality as per usual spike's tactical parts. The tube is coated with dry film lube and fit and finish were excellent. Fit perfectly in my stripped lower the spring, buffer, castle nut, and end plate included also were top quality. Highly recommend the assembly, its worth the couple of extra bucks. Highly recommend Primary Arms for the purchase.

Great Quality! I wish Primary Arms would off FREE SHIPPING with orders over a certain amount! I still cant complain when items are very fairly priced and a great selection.

This is my second Spikes buffer kit, they're awesome, but this one is even better as the buffer tube no longer has that ugly gray lube coating on it anymore. My STR stock does fit slightly looser on this buffer tube than the original coated buffer tube, no big deal though.

I have been using Spike's Tactical AR parts for some time now and find them to be excellent in fit and finish and have never had any problem with any of their products. This tube assembly is no exception. It looks and performs great. The powdered tungsten filled buffer makes for a smooth and quiet cycle. If you have never tried one of these, try one!
Once I discovered this item, I now use it in all my AR builds.
And once I discovered Primary Arms, It's the only website I order from.

I purchased this kit in July 2014 and just now had a chance to test it. I fired 120 rounds of M193 ammo and I had no issues whatsoever. I paired it with a Yankee Hill barreled upper (YHM-7800) which is a carbine gas system.

Doing your first build? Buy this. Spikes is quality. Buy it from PA I DID. got it in 2 days. There's none better.

Sturdy quiet smooth. Best quality for its price range hands down.

Great product sold build. Probably a little high for the components but I haven't tried any one else's so I can't attest to their quality. But if you want a solid and heavy duty built buffer then you've found it. Only complaint is I wish the plate had a sling attachment.