Details
Details
Reduce felt recoil and improve cycling reliability with the Spike's Tactical ST-T2 Tungsten Heavy Buffer 4.0 oz. This heavier buffer slows bolt carrier velocity, helping tame over-gassed systems and deliver smoother, more controlled shooting.
The Spike's Tactical ST-T2 Tungsten Heavy Buffer 4.0 oz is a carbine-length buffer designed for AR-15 platforms using carbine receiver extensions.
Heavier mass slows bolt carrier velocity for reduced felt recoil and less bolt bounce.
Increases dwell time, improving extraction reliability in over-gassed or suppressed setups.
Direct drop-in replacement for standard carbine buffers with no modifications required.
- Type: Heavy Heavy Carbine Buffer
- Length: 3.25"
- Fill: High-Density Tungsten Powder
Compatible with AR-15 and AR-10 platforms using Mil-Spec or commercial carbine-length receiver extensions. Also fits 8" GI-spec AR-10/AR-308 receiver extensions.
Precision machined to mil-spec dimensions for reliable fit and consistent performance. Built from durable materials to withstand years of regular use.
A reliable choice for standard AR-15 carbine builds, replacement parts, and new builds using carbine-length gas systems with 16-inch barrels.
Spike's Tactical is a veteran-owned manufacturer of AR-15 rifles and components, known for innovative designs and dependable performance trusted by military, law enforcement, and civilian shooters.
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
Ratings & Reviews
243 reviews
Good product. great customer service.
by Jeremy
can't wait to get started and use this in my new AR 15 build. Primary Arms is my new go-to supplier for everything i buy online.
feels nice
by anonymous
Quite operation and fights bolt bounce.
Fast shipping, excellent service
by Ryan
I have made 3 purchases from Primary and couldn't have asked for better customer service and fast shipping. The buffer that I ordered seems solid and well-built, I have recommended it to friends.
Exellent
by Mario
awesome product at a great price. These guys at primary arms are no joke, great customer service 24/7.
Excellent quality, great service!
by JR
Extremely happy with the quality and price of this buffer, would highly recommend to anyone doing a custom build.Delighted with the price and excellent service I always receive from PA.
Excellent product
by Bobby Haley
I have two of these in my AR's and love them.Primary Arms ships very fast and is very reliable.
Excellent Buffer for a SBR or AR Pistol
by anonymous
This is my 2nd T2 Buffer, and they work great on my SBR and AR Pistol...suppressed and unsuppressed. Most likely going to change the rest of my rifles with this T2 Buffer.
Excellent
by anonymous
Excellent product and excellent service.
Buffer
by anonymous
Good product, just as advertised.
buffer
by anonymous
have one in my carbine already works well Bought another