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Questions & Answers
What’s the weight on the buffer ? Expert Answer

The Spikes Tactical Carbine Buffer Assembly Kit uses the ST-T2 Heavy Buffer. However, the exact weight of the buffer is not stated by the manufacturer. I recommend contacting Spike's Tactical in regards to this information.

by Hunter, Gear Expert, March 31, 2022
Will this work on a ar 10 308 Expert Answer

MPN: SLAX50R-K will work for an AR platform 308 rifle.

by Jonathan D., Gear Expert, May 28, 2019
Customer Reviews
Helpful Positive Review
Always the best by cciummo, Verified Owner, March 21, 2021
I made the fortunate error many years ago when building my first AR when a buddy of mine kept hounding me to get one from BCM.. because “they were the best”. Well at that time one could barely find ANY parts as the US was still in shock from a school...
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3/3 found this helpful
Helpful Positive Review
Spikes Tactical Build by TNT, August 7, 2021
The Spikes tactical buffer assembly fits very well. No issues so far. I did up graded to a heavier buffer weight for my PCC 9mm. I didn't feel like putting quarter into the buffer tube for adjustments. But working perfectly so far. The brass is eject...
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1/1 found this helpful
Helpful Positive Review
The ONLY buffer assembly I'll ever use. by cciummo, Verified Owner, February 26, 2021
Time after time, this buffer kit amazes me in it's flexibility to adapting to literally ANY AR15 build configuration. The Tungsten buffer is always solid.. never any spring clanging with each shot (no need for messy lithium grease). Tube threads alw...
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1/1 found this helpful
Helpful Positive Review
Carbine Buffer Assembly Kit by John Richmond, Verified Owner, January 10, 2017
This is a great product by Spikes Tactical. The six position buffer tube helps with getting the buttstock into your shoulder for more sturdy support when firing your AR. The buffer is heavier then the standard issued buffer tube. The heavier buffer h...
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7/7 found this helpful
Helpful Positive Review
Great product by Red, April 19, 2021
Great buffer tube easy install. Had it in in about ten minutes. No drag at all. Shipped quickly and was packaged nicely. Optics planet has great selection and great service. Price was good for product of this quality
1/1 found this helpful
Helpful Positive Review
spikes buffer assembly kit by bimbo, Verified Owner, January 10, 2019
The Spike’s Tactical carbine buffer assembly kit is just what you need to finish off your lower with quality components. This kit is perfect for those who either already have their own stock to use or just want to pick a different stock very happy wi...
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1/1 found this helpful
Read All 23 Reviews
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Product Info for Spikes Tactical Carbine Buffer Assembly Kit

If you're looking to finish off your lower receiver or upgrade its components, then the Spikes Tactical Carbine Buffer Assembly Kit is the perfect addition for you. These AR15 Buffer Assemblies by Spikes Tactical contain a buffer tube that is slightly heavier than a standard issue buffer tube, which assists with enhanced recoil control and muzzle rise. Another useful benefit of the Spikes Tactical MIL-SPEC Buffer Tube Assembly is that the buffer tube helps position the buttstock into your shoulder, which provides sturdier support when firing your rifle. This product is perfect for those who already have their own stock or those who want to pick a different stock. Get the upgrade you need for your firearm today with the Spikes Tactical Carbine Buffer Enhancement Kit.image

Specifications for Spikes Tactical Carbine Buffer Assembly Kit:

Manufacturer: Spikes Tactical
Color: Black
Fabric/Material: Stainless Steel
Condition: New
Country of Origin: USA

Features of Spikes Tactical Carbine Buffer Tube Assembly Kit, 2A8-BFA-STCBFRAK:

  • Buffer tubes machined from 7075-T6 aluminum
  • Full Mil-Spec components
  • Mil-Spec Buffer tube with dry film lube
  • Latch plate
  • Castle nut
  • Mil-Spec 17-7 Stainless Buffer spring
  • ST-T2 Heavy Buffer

Package Contents:

  • Spikes Tactical Carbine Buffer Assembly Kit, 2A8-BFA-STCBFRAK

Spikes Tactical Carbine Buffer Assembly Kit Orderable Models

List of Orderable Models

  • Spikes Tactical Buffer Tube Assembly .308 - Mil-Spec 6 Position, SLAX50R-K , MPN: SLAX50R-K , UPC: 815648025304 , Code: 2A8-BFA-STCBFRAK-SLAX50R-K
  • Spikes Tactical Buffer Tube Assembly - Mil-Spec 6 Position, Black, SLA500R-K , MPN: SLA500R-K , UPC: 855319005211 , Code: 2A8-BFA-STCBFRAK-SLA500R-K
  • Spikes Tactical Buffer Tube Assembly - Pistol, SLA500P-K , MPN: SLA500P-K , UPC: 855319005198 , Code: 2A8-BFA-STCBFRAK-SLA500P-K

Spikes Tactical Carbine Buffer Assembly Kit Unavailable & Discontinued Models

List of Unorderable Models

  • USED Spikes Tactical Buffer Tube Assembly .308 - Mil-Spec 6 Position, SLAX50R-K, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: SLAX50R-K-EDEMO1 , Code: 2A8-BFA-STCBFRAK-SLAX50R-K-EDEMO-RE-A
  • USED, Spikes Tactical Buffer Tube Assembly - Mil-Spec 6 Position, Black, SLA500R-K , MPN: SLA500R-K-EDEMO , Code: 2A8-BFA-STCBFRAK-SLA500R-K-EDEMO-IN-D
  • USED, Spikes Tactical Buffer Tube Assembly - Mil-Spec 6 Position, Black, SLA500R-K , MPN: SLA500R-K-EDEMO , Code: 2A8-BFA-STCBFRAK-SLA500R-K-EDEMO-SC-C
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