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Palmetto State Armory
Overview
The PSA AR15 Carbine Buffer is designed specifically for use in carbine-length buffer tubes, adhering to Mil-Spec standards for compatibility and reliability. This buffer only assembly plays a crucial role in the cycling of your AR-15, ensuring smooth operation by absorbing recoil and aiding in the proper function of the action. This buffer is commonly found in builds utilizing a carbine gas system, particularly in .350 Legend caliber setups.
Builders have been adding the PSA AR15 Carbine Buffer - 1177 to their builds on GunPartPicker since February 2026. All time, it ranks #85 of the 176 buffers builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $9.95, so there haven't been real sales lately. Buying today, the lowest price is $9.95 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every buffer by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Guide →Check it against the live catalog:
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Builds in the community that include the PSA AR15 Carbine Buffer - 1177
| Build | Parts | Total |
|---|---|---|
![]() | 24 | $1073.69 |
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