UTG PRO S1 Mil-Spec AR-15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More

from$59.47$69.97Save $10.50
Color: Choose color
Choose your options Stock and the exact price show once you pick a color.

Frequently bought together

From orders that included this item

Product description

UTG Pro S1 AR-15 Stock Kit – Complete Mil-Spec 6-Position Recoil System

Features

  • Complete AR-15 carbine stock kit with stock, receiver extension, buffer, spring, end plate, and castle nut
  • Six-position mil-spec receiver extension provides adjustable length of pull
  • S1 polymer stock features a rubberized butt pad and slanted cheek rest
  • Dual waterproof storage compartments accommodate up to eight CR123 batteries or other small accessories
  • Integral ambidextrous sling loop and QD sling swivel housing provide multiple sling attachment options
  • Chamfered edges and rounded contours help reduce snag points
  • Available in Black and Flat Dark Earth
  • Designed and made in the USA

The UTG Pro S1 Stock Kit includes the components needed to add a complete carbine-length recoil system and adjustable stock to an AR-15 lower receiver. The full-size S1 stock provides a broad cheek rest, rubberized butt pad, and dual waterproof storage tubes, while the six-position mil-spec receiver extension allows the length of pull to be adjusted from 11.3″ to 14.6″. Black and FDE versions use the same components, with the FDE kit featuring a matching FDE Cerakote receiver extension.

Note: This kit includes an AR-15 carbine buffer and spring. It is not a complete AR-308 recoil system.

Specifications

  • Brand: UTG Pro
  • Model: Ops Ready S1 Mil-Spec Stock Kit
  • Compatibility: AR-15
  • Stock Positions: 6
  • Receiver Extension: Mil-spec diameter, 6061-T6 aluminum
  • Stock Material: High-strength polymer
  • Buffer: Standard carbine, 3.0 oz
  • Storage: Dual waterproof compartments, up to 8 CR123 batteries total
  • Stock Dimensions: 8.1″ long x 2.2″ wide x 5.5″ high
  • Length of Pull: 11.3″ collapsed to 14.6″ extended
  • LOP Adjustment Increment: 0.625″
  • Kit Weight: 23.1 oz
  • Castle Nut Torque: 35-40 ft-lb
  • Color, Finish & MPN:
    • Black: RBUS1BM – Black anodized receiver extension
    • Flat Dark Earth: RBUS1DM – FDE Cerakote receiver extension
  • Country of Origin: USA

What’s Included

  • 1x UTG Pro S1 stock
  • 1x Mil-spec 6-position receiver extension
  • 1x Standard 3.0 oz carbine buffer
  • 1x Carbine buffer spring
  • 1x Tear-drop receiver end plate
  • 1x Castle nut
All 1 options on this page

Customer reviews 5

ryanreuter13 Verified buyer
Easy and good fit love it compared to my fixed butt stock!
Christopher Ayala Verified buyer
UTG PRO S1 Mil-Spec AR 15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More

AT3 Tactical · Thank you for taking the time to leave a review for our UTG PRO S1 Mil-Spec AR 15 Buttstock Kit. We are glad to hear that you were satisfied with all the included parts, including the buffer, tube, and springs. We strive to provide our customers with high-quality products that meet their needs. If you have any further feedback or questions, please don't hesitate to reach out to us.

Leo Goetz Verified buyer
Great buttstock and buffer kit. Better than I had expected. Very fast shipping. I'm very happy with my purchase from AT3 Tactical.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Dewey Lewis Verified buyer
UTG PRO S1 Mil-Spec AR 15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Kevin Davidson Verified buyer
Easy to install, well made, and AT3 Tactical was a pleasure to buy from. Thank you AT3 Tactical!!

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Leave your review
Rating

Questions & Answers

No questions yet. Ask about fit, install or compatibility and our team answers within a business day.

Ask a question

Warranty & returns

Backed by the UTG Lifetime Warranty!

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Customers also viewed

Viewed in the same session as this item.
Sale!
Sale!
Sale!
Sale!
Sale!

Your cart