Armaspec ECB Kit in Black
$20.99 at GunMag Warehouse · 5 stores
In stock
Cs Standard Spring Kit-Std Buffer & HD 5-Coil Bolt Extractor Spring
Sprinco USA · Buffer Tubes & Springs
No ratings yetBest price
$21.99at Brownells
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $21.99checked Oct 1, 2026 | In stock | Buy at Brownells | |
| Battlehawk Armory | $20.76Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $23.59checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $21.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | $20.76 | $20.76 | $20.76 |
| Brownells | $21.99 | $21.99 | $21.99 |
| Palmetto State Armory | $23.59 | $23.59 | $23.59 |
Since Sep 27, 2026.
About this part
The Cs Standard Spring Kit-Std Buffer & HD 5-Coil Bolt Extractor Spring is an AR-15 buffer part from Sprinco USA. It's sold by 3 stores (1 in stock), from $20.76 to $23.59. The lowest in-stock price in the last 30 days was $21.99 at Brownells.
Specifications
- Manufacturer
- Sprinco USA
- Type
- Buffer Kit
- Platform
- AR-15
From the manufacturer
Standard Power Buffer Spring. Equivalent spring load to a brand new Mil-Spec M4 Carbine Spring. This spring will perform reliably in any properly configured and maintained 5.56 Carbine, if you wish to maintain the performance of a "fresh" Mil-Spec load spring without concern for replacement. This is the best choice for shooters and purists that wish to maintain the performance of most factory supplied new Mil-Spec springs, but do not wish to be concerned with frequent replacement of same or do not have the time or inclination to seek enhanced performance options. Just consider it as permanent new Mil-Spec spring. Mfg: Sprinco Usa
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