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
Ultradyne UD7 Chassis
As Low As $362.17 Save Up to 23%
View Product
Compare (0)
Show
Sort by
Filter by

Best for price

by Gmd, Verified Owner from CA, United States Written on October 25, 2025
I took a chance and paid the $$ for this stock and it was worth the price. So far I have used the magpul mags that work great. The factory REM actions screws won’t fit, being too long. You are better off using hex head bolts (1/4x28) got mine from Ace hardware. Also it came with no stock set screw (I had extras). Also unless you modify the grip, it take the older original AR grips. Otherwise just cut some of the back of the newer grips to fit, as I did.
Pros:
  • Best stock I have tried
Cons:
  • Needs some modified screws
Would recommend: Yes
Was it helpful to you? Yes | No

Ultradyne UD7

by Butch, Verified Owner from TX, United States Written on March 2, 2025
Better than expected! Sold on the Arca rail! Glad I went with the UD7 vs the UD5, perfect length for my 24in barrel.
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?