Nickel Boron NiB-X Spare Bolt Cam Pin
$12.99 at Brownells · 5 stores
In stock
Upgrade Triple Kit-3)4-Coil Extractor Spring, Insert,O-Ring
Sprinco USA · Upper Parts
No ratings yetBest price
$12.99at Brownells
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $12.99checked Oct 1, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $17.49checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $12.01Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $12.99Salechecked 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: $12.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $17.49 | $17.49 | $17.49 |
| Battlehawk Armory | $12.01 | $12.01 | $12.01 |
| Brownells | $12.99 | $12.99 | $12.99 |
| Palmetto State Armory | $12.99 | $12.99 | $12.99 |
Since Sep 27, 2026.
About this part
The Upgrade Triple Kit-3)4-Coil Extractor Spring, Insert,O-Ring is an AR-15 upper part from Sprinco USA. It's sold by 4 stores (2 in stock), from $12.01 to $17.49. The lowest in-stock price in the last 30 days was $12.99 at Brownells.
Specifications
- Manufacturer
- Sprinco USA
- Platform
- AR-15
From the manufacturer
Sprinco's Extractor Springs are made of chrome silicon wirestock that has been heat treated, stress relieved, and cryogenic processing post winding. The springs are also plated with re-micronized molybdenum disulfide formulation. ADVANTAGES: XP 5-Coil spring has a heavier spring load than OEM springs, thus negating the need for a D-Fender(TM) ring or adding CRANE Viton O-Rings Use 5-Coil spring with either black extractor spring insert OR CRANE Viton O-Rings, but not both Enhanced 4-Coil springs maintain an extended duty cycle load of a NEW Mil-Spec spring and is recommended for use in 18""+BBL lengths for those who retrieve their brass for reloa Mfg: Sprinco Usa
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