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B5 Systems
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MSRP: $128.25
$128.25
In stock
Estimated delivery excludes weekends and holidays; subject to weather and compliance exceptions. FFL orders ship to dealers; ETA reflects shipment date, not transfer.
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Description
The B5 Systems Sierra K Extension Kit is specifically designed for use with the Sierra K compact stock. This shortened receiver extension kit includes a receiver extension, buffer, spring, castle nut, and QD end plate.
Specifications:
- Color: Black
- Type: Buffer Tube Kit
Additional information
| Weight | 8 oz |
|---|---|
| MPN | SRK-1660 |
| UPC | 814927024793 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
