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-b6e0d4a67bc/" 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!
This is by far the most recoil mitigating muzzle device I have ever used. The tunability of the small ports on top let your stay on top of the target better than anything else even with the recoil of a healthy 300 win mag load. I find it hilariou...
Read More...
Fit like a glove, the installation was simple do you wanna be the one with the loudest gun at the range? This is it
The tunable muzzle holes at the top genius easy to set up
Had the wrong one shipped sent it back they sent me the right one right aw...
Read More...
little tricky getting it timed but once you do its there an it makes 223 with 75 grain bullet feel like 22lr with 32 grainer in it ill definitely purchase another in future from op
youd better be down with op
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 American Precision Arms Fat Bastard Self Timing Muzzle Brake
American Precision Arms is very excited to share the release of Fat Bastard. It has been a long time coming but they wanted to make sure everything was perfect before offering something new.
The development of APA Fat Bastard was the result of American Precision Arms' constant pursuit of breaking the mold and a desire to meet the demands of the Long-Range and Hunting markets. APA has combined the standards of high-level performance and reliability with distinctive design enhancements to improve both accuracy and performance. These enhancements benefit the shooter experience at the range and in the field where every advantage matters.
The roots of the new version of the Fat Bastard lie in the requests of the elite long-range precision rifle community. APA's goal was to meet the needs of those shooters while also maintaining their standards of pristine manufacturing. Among the design, changes are three key features. The advanced Unique Recoil Profile tunable top port design allows the shooter to fine-tune the muzzle movement for absolute target retention. In addition to that, the new lock nut design creates a zero over rotating platform. Last, is the addition of a fifth Bastard port section that eliminates even more recoil than before.
This allows the shooter to not only combat direct recoil but muzzle rise and lateral movement based on the characteristics of their rifle, personal grip, stance, and the position they are shooting from.
They developed the U.R.P. Adjustable Gas System. These aren't just randomly placed top ports. Every port is placed adjacent to the internal Bastard tooth where there is maximum pressure build-up. This makes the adjustable ports directionally effective.
The unique tunable gas system combined with the trademark APA ports work together to achieve a sight picture that moves less than ever before. There are 10 directional gas ports that can be tuned to counteract youre U.R.P. (unique recoil profile).
There are endless combinations to keep your sights on target. To calibrate the brake to your U.R.P., start testing with all the gas screws installed. Pay attention to the movement of your reticle, and begin removing the gas screws as the recoil requires.
When the gas screws are removed on the right side, the rifle will be shifted left. For the opposite effect simply remove the screws on the left. The gas holes closer to the nut have a more dramatic effect and the ports closer to the brake crown have a lesser effect. When you find your U.R.P. combination, Threadtite your screws into place.
Specifications for American Precision Arms Fat Bastard Self Timing Muzzle Brake:
Manufacturer:
American Precision Arms
Projectile Caliber:
.338 Caliber
Fabric/Material:
Stainless Steel
Threads per Inch:
5/8x24
Model Generation:
2
Inner Diameter:
1.1 in
Length:
3.5 in
Weight:
7.2 oz
Included Accessories:
Standard
Condition:
New
Country of Origin:
USA
Package Contents:
American Precision Arms Fat Bastard Self Timing Muzzle Brake