+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

B5 Systems Sierra K Extension Kit SRK1660 Color: Black, $6.75 Off w/ Free S&H

Special offer available for this product. Click here to see!
Limited Time Offer. Click here to see!
B5 Systems Sierra K Extension Kit, Black, SRK1660
B5 Systems Sierra K Extension Kit, Black, SRK1660
1 of 1 images
B5 Systems Sierra K Extension Kit, Black, SRK1660

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Color:
Black

Code: 24X-BFA-Q13DG-SRK1660

MPN: SRK1660

List: $135.00Save $6.75
$128.25

Product Info for B5 Systems Sierra K Extension Kit

Sierra K Extension Kit comes with receiver extension, buffer and spring.image

Specifications for B5 Systems Sierra K Extension Kit:

Manufacturer: B5 Systems
Color: Black

Package Contents:

  • B5 Systems Sierra K Extension Kit

B5 Systems Sierra K Extension Kit Orderable Models

List of Orderable Models

  • B5 Systems Sierra K Extension Kit, Black, SRK1660 , MPN: SRK1660 , Code: 24X-BFA-Q13DG-SRK1660
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2026-07-09 UTC.