AR-15 – Heavy Carbine Buffer – ST-T2 – 4 oz
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Spike’s Tactical built the ST-T2 for AR-15 shooters wanting a heavier carbine buffer that smooths recoil impulse and calms down a lively gun without getting ridiculous. It uses a solid aluminum billet body, black anodized finish, mil-spec bumper, and tungsten powder fill in a maintenance-free design.
This is the sweet-spot model in the family for a lot of carbine builds. Not too light, not full T3 hammer mode.
Fitment
- Fits AR-15 platforms using carbine-length receiver extensions
- Compatible with mil-spec and commercial carbine receiver extensions
- Direct drop-in replacement for standard carbine buffers
Does NOT fit
- Not for rifle-length receiver extension systems
- Not the right buy for someone specifically wanting the lighter ST-T1 or heavier ST-T3
- Not for proprietary recoil systems unless separately verified
What it does
The ST-T2 adds more mass than the T1 to help slow carrier movement, soften felt recoil, and smooth out cycling in AR-15 carbines. It is widely treated as the middle-ground heavy buffer in the Spike’s lineup.
Why it’s worth it
For a lot of builders, this is the one that makes the most sense. It is heavier than a basic setup, smoother than cheap generic buffers, and still simple enough to be a clean drop-in upgrade.
Specs
- Platform: AR-15
- Type: Heavy carbine buffer
- Model: ST-T2
- Weight: 4 oz
- Material: Solid aluminum billet
- Finish: Black anodized
- Fill: Crushed tungsten powder
- Bumper: Mil-spec
- Maintenance free
- Made in USA
- Lifetime warranty
What’s included
- 1 Spike’s Tactical ST-T2 heavy carbine buffer
Install notes
This is still a tuning part, not magic. It can help a carbine behave better, especially when the gun is a little hot, but buffer choice should still match the rifle’s gas, ammo, and overall setup.
Verify before you buy
Verify that your rifle uses a carbine-length receiver extension and verify that you want the ST-T2 4 oz model, not the lighter T1 or heavier T3 version.
⚠ Trademark & Compatibility Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility or fitment.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
