B5 Systems B5 SRK EXTENSION KIT BLK

The Sierra K Receiver Extension Kit is the proprietary mounting system for the Sierra K Buttstock. All parts are made of mil-spec materials and finishes and proudly Made In The USA.

Features

• Reduced-length 5-position Receiver Extension Constructed of 7075 Aluminum
• Includes a Short Heavy Buffer (3.5 oz), Extra Power Spring, Castle Nut and QD End Plate.

Product Information

• Manufacturer: B5 Systems
• Manufacturer Part Number: B5
• UPC: 814927024793
• SKU: B5SRK-1660

Inventory is synchronized directly with our distributor to help ensure current availability.

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