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

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
104 Reviews

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Spike's Tactical carbine buffer assembly kit is just what you need to finish off your lower with quality components. The Spike's Tactical Carbine Buffer Tube is a MIL-SPEC, 6-position tube, with dry lube film for improved reliability and reduced wear! It also features laser engraved positions marking each stop along its length.
Kit Includes:
  • 6-position MIL-SPEC buffer tube.
  • Latch plate.
  • Castle nut.
  • 17-7 stainless steel buffer spring.
  • Spike’s Tactical ST-T2 Heavy Buffer.
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BrandSpike's Tactical
Buffer3.25 Carbine - ST-T2 4.00 oz
TypeStock Hardware Kit

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

104 reviews


spikes tube assembly


Super deal and fast shipping. Thanks

Primary Arms service


The buffer tube was exactly as described however I knew that prior to ordering what set this purchase apart was the Primary Arms experience. They shipped within a couple hours ordering and so received my product within 2 days, They are the best

Spike's Tactical 6 Position Mil-Spec Buffer Tube A


The ONLY thing negative I can say about P/A, is that they don't carry or "rep" Everything. I made the mistake(for the 2nd time), of ordering from another Vendor, and after waiting for the confirmation, which never came, I cancelled that order. While P/A didn't carry that specific item(a complete Upper), I told my Son, that I wouldn't be making that mistake again. This last order of miscellaneous items to complete a "build", was not quite confirmation, shipping and on the road, all in the same day. Primary Arms, YOU ROCK.



The spikes tactical buffer tube assembly works perfectly on my yankee hill lower. Great price and fast shipping from primary arms as always!



The star of this kit is the excellent T2 buffer. Everything else seems like it's basic run-of-the-mill stuff. The stock position numbers on the receiver extension (buffer tube) are useless when using after-market stocks. The fit and finish of the receiver extension were good on my example.

.5 oz makes a difference


The tube is as expected but cost effective for the heavier buffer

Mil spec buffer tube


These are a much tighter than a commercial buffer tube. Spikes quality is well known and this one lived up to their reputation.

Quality Mil Spec buffer assembly!


This appears to be a really nice buffer tube assembly. Along with the Magpul ACS-L stock it feels great with minimal rattle. Recoil felt great with the powdered buffer, however I haven't used it with the upper it is intended for which will be shooting heavier loads. I'll report back later! Would buy again for another build!

nice kit


This is a nicely made part and looks great. The position marks on the top of the buffer tube were a nice surprise.

Awesome Deal!!!


This is an Awesome Deal!!!