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.
Please Enable Your Browser's Cookies Functionality
Cookies are not currently enabled in your browser, and due to this the functionality of our site will be severely restricted.
Web browser based cookies allow us to customize our site for you, save items in your cart,
and provide you with a great experience when shopping OpticsPlanet.
Your privacy is important to us, and any personal information you supply to us is kept strictly confidential.
If you cannot enable cookies in your browser, please contact us — we are always here to help!
JavaScript is blocked by AdBlocker or ScriptBlocker
We're sorry - it looks like some elements of OpticsPlanet are being disabled by your AdBlocker.
Unfortunately we are unable to offer our excellent shopping experience without JavaScript.
Please add "opticsplanet.com" and "https://opl.0ps.us/assets-5351ccd9953/" to whitelist,
or disable AdBlocker for this site (please note that we do NOT feature any annoying ads on this website).
Thanks!
Your Browser is Outdated
Unfortunately, we are unable to provide an excellent shopping experience on your browser because it lacks modern functionality needed for us
to provide a fast, secure, and enjoyable experience. If you cannot upgrade your browser or use an alternative device to visit us,
please contact us at +1-800-504-5897 and we'll be happy to assist you over the phone!
Reviews & Ratings for Fortis Manufacturing Fortis Low Profile Gas Block
— 10 reviews — Page 1
Building an AERO upper/lower with the Diamondhead Keymod Rail that has the slant angle on the front and the Diamond hider with the slant front. Wanted something clean and a bit different in regards to a gas block for this build and this Fortis fit the bill perfectly! Super clean nice machining, great black nitride finish, super cool looks, with perfect function! Great choice for ANY build and I would definitely recommend it!
by
PatrickG,
Verified Owner
from TX, United States
Written on December 6, 2020
Not only is this gas block good looking, it’s also superior in quality to so many others that I’ve used. They makes some great products. I went with the stainless and used a Strike Industries handguard. Very happy with how the build turned out
Pros:
Function
Looks
Cons:
Always price
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Norwood,
Verified Owner
from AR, United States
Written on May 7, 2018
Good product. Fits well. Low profile gas block looks really good. For the money it’s definately a good product. Put on a 14.5 barrel with a flash can. Anderson lower. Aero barrel. Definitely worth trying out.
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
JODY,
Verified Owner
from GA, United States
Written on January 21, 2018
THIS IS A GOOD LOOKING PART FOR YOUR AR.IT REALLY SETS OFF THE CUSTOMISED LOOK ONE LOOKS FOR IN A MODERN RIFLE.THATS NOT ALL YOU GET FROM FORTISTHIS BLOCK FUNCTIONS ASGOOD OR BETTER THAN IT SLEEK STYLE DELIVERS.
Pros:
LOOKS GOOD,FUNCTIONS BETTER
Cons:
none I experienced
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Z,
Verified Owner
from NC, United States
Written on January 16, 2018
Fortis low profile gas block nice and light weight. Very easy to install and had a nice snug fit. The gas block was was easy to get installed and aligned with the gas port on the first try. It even has a nice finish on it.
Pros:
Low profile
Cons:
None
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Dre,
from CA, United States
Written on December 7, 2017
Buying this gas block to go with my battle arms build along with my fortis 16" night rail. Hopefully this gas block lives up to the quality of the rail I'm hoping to have this installed and Built by Christmas
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Nice,
Verified Owner
from AZ, United States
Written on September 17, 2017
Looks gorgeous and works fantastic. Very low profile fits under a custom low profile handguard. Fortis Manufacturing makes fantastic components that don't look like anything else on the market. Very highly recommend.
Pros:
Design and Function
Cons:
None
Best Used for:
Custom AR Build
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Sam,
Verified Owner
from FL, United States
Written on June 13, 2017
By far one the the best mods you can add to your build, this is the second Fortis gas block I own and because of its low profile size you are able to accommodate smaller hand guards on your rifle, and it looks great unlike the usual gas blocks that have no definitive shape this gas block from fortis is esthetically pleaseing to look at through your hand guard.
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
george,
from AZ, United States
Written on June 3, 2017
As with all Fortis products, beautiful piece, great fit and finish. Very low profile and looks fantastic on a custom build, works flawless. I would buy again in a heartbeat. One of the nicest gas blocks I've seen.
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Midwest,
from PA, United States
Written on March 7, 2017
Bought two if these, one in black and one in the bead blasted staiinless. Both work flawlessly, but was a little dissapointed with the overall finish of the stainless one. There are very small and would pretty much fit under any handguard. The fit on my barrels was near perfect.
Pros:
Cheap
Looks good from the side
works flawlessly
Cons:
Wasnt crazy about the stainless color. Match was off
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?