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The Spikes Tactical ST-T1 is a heavy carbine buffer built to replace the standard buffer that came with your AR-15. At 3 oz (85g), it adds meaningful mass over a bog-standard carbine buffer, and that extra weight does real work: softer recoil impulse, less muzzle rise, and a quieter, smoother cycle. Spikes machines the body from solid billet aluminum bar stock, finishes it in matte black anodizing, and laser engraves it with their spider logo. It's the same buffer the ST Shooting Team runs, which tells you plenty about how it performs when it counts.
Instead of loose steel weights sliding around like you'd find in a mil-spec buffer, the ST-T1 is packed with high density tungsten powder and capped with a Mil-Spec bumper. That means no clunky weights bouncing back and forth making noise, and no fluids to leak out over time. The result is a buffer that runs silky quiet and cycles noticeably smoother than the standard unit most rifles ship with. It's a genuine 100% maintenance-free part, so you install it once and forget about it.
This buffer shines on rifles that could use a little settling down. If you're running a carbine-length gas system, a suppressor, or a setup that's a touch overgassed, the added tungsten mass helps eliminate bolt bounce and keeps the gun tracking flatter shot to shot. It's tuned around .223 Rem and 5.56 NATO but works across other calibers just fine. For a lot of folks, swapping in a heavier buffer is the single best bang-for-buck upgrade you can make before pouring money into springs, gas blocks, and the rest.
Installation takes about a minute. Pull your old carbine buffer and spring, drop the ST-T1 in, and you're back in business. It fits AR-15 carbine receiver extensions and pairs nicely with an upgraded buffer spring if you want to fine-tune things further.
Yes, the ST-T1 is designed to drop straight into a standard AR-15 carbine receiver extension (buffer tube). It replaces your existing carbine buffer with no gunsmithing required. Just remove the old buffer and spring, then slide the ST-T1 in.
A standard carbine buffer weighs around 3 oz but uses loose steel weights that rattle and cycle noisily. The ST-T1 comes in at 3 oz using high density tungsten powder instead, so there are no reciprocating weights to make noise and nothing to leak. That gives you a smoother, quieter cycle and helps cut down on bolt bounce and felt recoil.
It's a solid choice for those setups. The added tungsten mass helps settle down rifles that run hot or aggressive, like suppressed guns or carbines that are a bit overgassed. It reduces muzzle rise and keeps the action cycling more consistently.
No, it's completely maintenance-free. There are no fluids to leak and no separate weights to service, so once it's installed you don't have to think about it. Just run it and enjoy the smoother cycling.
| UPC | 855319005259 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SLA00T1 |
| Product Type | Buffer |
| Model | |
| Color | Black |
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