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B5 Systems Sierra K Compact Stock, Black, Mil-Spec Receiver Extension Mount, QD Sling SRK-1655

SKU: FLX-B5SRK-1655

Vendor B5 Systems
Regular price $52.98
Sale price $52.98 Regular price $61.00
Sale Sold out
Unit price
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Product Description

The B5 Systems Sierra K is a purpose-driven, compact rifle stock optimized for personal defense weapon (PDW) and other compact weapon systems. Designed with a reduced overall size and slim cheek profile, it features a snag-free adjustment lever for smooth length-of-pull changes. Integrated sling options include limited-rotation quick-detach (QD) capability and fixed sling mounts, while internal tensioners and an anti-slip buttpad help maintain a solid, consistent shoulder weld. The Sierra K mounts via a shortened compact Mil-Spec receiver extension using the Sierra K Receiver Extension Kit.

Product Highlights

  • Compact PDW-focused stock design with a slim cheek profile for efficient handling
  • Low-profile, snag-free adjustment latch for quick, streamlined positioning
  • Limited-rotation QD sling mount and integral fixed sling mounts for versatile carry setups
  • Internal tensioners and anti-slip buttpad for a stable, consistent shoulder interface
  • Mil-Spec materials and finishes with color-matched steel hardware for durability and corrosion resistance

Specs

  • Brand: B5 Systems
  • Model: Sierra K
  • Product Type: Compact rifle stock
  • Color: Black
  • Mounting: Shortened compact Mil-Spec receiver extension (via Sierra K Receiver Extension Kit)
  • Sling Mounts: Limited-rotation QD and integral fixed sling mounts
  • UPC: 814927024748
  • Manufacturer Part Number: SRK-1655

Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.

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