Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! 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 Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Customer Reviews
Most Recent Reviews
Affordable Quality by Dan, Verified Owner, March 1, 2025
I really like this older version of stock and UTG makes great quality products that are quite affordable. I installed it and I’m very happy with it. Works flawlessly.
Most Recent Reviews
Great Budget Stock by I Boone, Verified Owner, July 24, 2024
At the price point, it's great. If you need a stock to complete a build I'd definitely recommend this. Only reason I didn't give it 5* because it's not very comfortable when shooting if you go through quite a few rounds at the range. (For reference I...
Read More...
Most Recent Reviews
Good Product by Nick, March 3, 2024
Well designed and very functional. Doesn't rattle like some I have tryed
Most Recent Reviews
Leapers UTG Mil-Spec AR-15 6-Position Stock. There isn't must to say about this stock, but It's simple, inexpensive, and worked very well for my 450 bushmaster build. I will use it again for most builds.
0/1 found this helpful
Most Recent Reviews
Leaders UTG Stock by Jeff, Verified Owner, April 23, 2018
Leapers UTG stock and buffer tube set are good high quality parts with excellent value. The installation of the unit was flawless and was very impressed with the quality for the budget price. The shipping and discounts were excellent and Optics Plane...
Read More...
Read All 5 Reviews
Show In Stock Only
2 Models Available
Color
All
Search

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for UTG Pro 6-Pos Mil-spec Stock Assembly

UTG PRO made in specialized factories 6-Position Mil-spec Stock Assembly - Black, Complete with 6-Position Mil-spec Polymer Stock, Extension Tube, Action Spring, Premium Recoil Buffer, Tear-drop Ring and Castle Nutimage

WARNING: California`s Proposition 65

Specifications for UTG Pro 6-Pos Mil-spec Stock Assembly:

Manufacturer: UTG Pro
Gun Model: AR-15
Gun Type: Rifle
Condition: New
Hand: Ambidextrous
Buffer Tube Size: Mil-Spec
Country of Origin: USA

Package Contents:

  • UTG Pro 6-Pos Mil-spec Stock Assembly

UTG Pro 6-Pos Mil-spec Stock Assembly Orderable Models

List of Orderable Models

  • UTG Pro 6-Position Mil-spec Stock Assembly, Black, RBU6BM , MPN: RBU6BM , UPC: 4712274528277 , Code: 2NZ-BSC-6PMSA-RBU6BM
  • UTG Pro 6-Position Mil-spec Stock Assembly, FDE, RBU6DM , MPN: RBU6DM , UPC: 4717385550643 , Code: 2NZ-BSC-6PMSA-RBU6DM

UTG Pro 6-Pos Mil-spec Stock Assembly Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, UTG Pro 6-Position Mil-spec Stock Assembly, Black, RBU6BM , MPN: RBU6BM-DEMO , Code: 2NZ-BSC-6PMSA-RBU6BM-DEMO
Compare (0)