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.

Shopping Cart
Strike Industries AR Optimus Weight Recoil Buffer
$65.95 $59.95 Save $6.00
View Product
Compare (0)
Most Helpful Positive Review Strike Ind. OPTIMUS adjustable buffer
I Highly recommend. Excellent quality. Very easy to use. You can get your AR-15 platform rifle cycling tuned to perfection with this buffer. Strike Industries knows quality too. I'll definitely be buying more. Of course Optics Planet was both fast and priced lower than the competition as well. They both have my return business.
Show
Sort by
Filter by

These work well - I’ve bought a few

by Dan, Verified Owner from FL, United States Written on January 16, 2025
I’m not sure why people are having trouble with these. I’ve used a few of them and they work really well; especially for fine-tuning troublesome 300 blackout rifles.
Would recommend: Yes
Was it helpful to you? Yes | No

Simplistic design.

by AK47, Verified Owner from TX, United States Written on September 12, 2024
Strike Industries makes a lot of great products but it seems like they always fall just one step short of perfection in design. This buffer is very easy to use for its intended purpose and utilizes 4 buffer weights (tungsten, steel, aluminum, polymer) rather than your typical 3 weights. Only instructions it came with show standard H1, H2 and H3 configuration but if you go to website you realize there are at least a dozen different configurations as you would expect with the ability to use 4 weights with 4 different materials. The polymer end of buffer seems thinner than many others out there and the top is just screwed on with a rubber o-ring so I’m curious how well it will hold up in my AR10. Price is pretty steep at $65 as well.
Would recommend: Yes
Was it helpful to you? Yes | No

Best modular buffer on the market

by One handed shooter, from OK, United States Written on April 3, 2024
Excellent buffer from Strke. Light weight aluminum and unscrews from the buffered end without the need tor two different allen wrench’s. Highly customizable with four different wants. I recommend this buffer.
Pros:
  • Light weight, easy access, highly customizable
Cons:
  • Should heavily oil threads
Would recommend: Yes
Was it helpful to you? Yes | No

Great choice!!

by Nic, Verified Owner from ND, United States Written on February 17, 2024
If you want something that’s going to work exactly how you want it, this is it!!
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Does not fit standard buffer tubes

by Scott, Verified Owner from WI, United States Written on February 6, 2024
I tired this buffer in multiple rifles/rifle tubes. And would get Jammed in every 1. I did finally take it to my grinding/buffing wheel to grind down the flare at the head. After grinding and polishing the flare at the top it finally functioned properly...at least in the 1 rifle I tried it in. This buffer may work for you if your willing to modify it, otherwise I would go the odin works adjustable buffer.
Pros:
  • Comes with 2 tungsten weights.
  • Easy to adjust weight
Cons:
  • 1
  • Needs modification to work
  • To big for mil spec tubes
Would recommend: No
0 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Great concept

by Galvin, Verified Owner from AL, United States Written on April 8, 2023
Great having the 4 weights to mix n match instead of 3. Not all aftermarket weights will work with this buffer. I have 2 S.I and 2 Odin works adjustable buffers. Odin works weights are just a hair to big in diameter. Also a couple other buffers from guns I've changed the buffers in are the same way I think I've had one out of several buffers that I could rob the weights out of and fit in the S.I adjustable buffer. Seems like the buffer will not fit in S.I flat wire springs either. But I'm not a 100% on that. I am 100% Odin works buffers will not fit in the S.I FLAT WIRE SPRING.
Pros:
  • 4 weights instead of 3
Cons:
  • Buffer not mil spec
Best Used for:
  • Cycling issues
Would recommend: Yes
Was it helpful to you? Yes | No

The Strike Industries AR Optimus Weight Recoil Buffer work great.

by G-Man, from OH, United States Written on March 30, 2023
I would recommend this to a friend I put the Buffer in My 6.5 grendel . the gun cycles better and no feeding issues. you can change the weights to fit your gun . It buy other buffers to figure out which one your gun works better with.
Pros:
  • You can change the weights to fit your gun
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Easy to put together and reconfigure

by pacman, Verified Owner from WA, United States Written on February 18, 2023
Purchased two of these. One for a milspec AR that will later be reduced to an SBR and one for an SBR that is still waiting for the tax stamp to come back. It was great to see that there are many spacers included that don't add too much weight. This prevents the signature "jingle" of other configurable buffers. Once I finally get approval to reconfigure my milspec AR to an SBR I'll be able re-configure the weight accordingly without having to purchase another buffer.
Pros:
  • one buffer to rule them all
Cons:
  • Extra parts
Best Used for:
  • Lowers with multiple uppers
Would recommend: Yes
Was it helpful to you? Yes | No

Adjustable Buffer

by Madhatter, from IN, United States Written on February 10, 2023
Great product to fine tune your AR's Shoot weapon until you get the proper weight in the buffer for the brass to eject properly then put a buffer in that matches that weight so you can use the adjustable on your next project
Pros:
  • works
Cons:
  • None
Best Used for:
  • AR
Would recommend: Yes
1 of 1 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?