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American Precision Arms built the Gen 2 Fat Bastard for the barrels that punch back the hardest. This is a precision-machined stainless steel muzzle brake sized for larger diameter barrels, the kind you'll find hanging off a .338 Lapua or other magnum builds. It threads in 5/8"-24 and measures 3.30" overall with a 1.115" body diameter, so it's got the mass to soak up serious recoil and turn a shoulder-thumping magnum into something you can actually enjoy running for a full range session.
The headline feature is the self-timing two-piece design. Instead of one solid unit that has to be indexed by a smith with crush or peel washers, the Fat Bastard uses a separate nut that locks the brake in the right orientation on its own. If your barrel is already threaded, you can install this thing at home in about 30 seconds with your hands and a crescent wrench. That same setup means you can pull it off just as fast to clean it or move it to another barrel, which is a big deal for competition folks who go through barrels in a hurry.
This one is meant for the heavy stuff. APA recommends a muzzle diameter in the .850" to 1.0" range, and the 1.115" body is designed to blend cleanly with those bull and match-profile barrels. Keep in mind the body cannot be turned down, so match it to a barrel it's built for. On a lighter sporter contour it'll look oversized, but on a proper magnum barrel it's right at home.
Among long-range and precision folks, this brake earned its reputation the old-fashioned way by working. Owners running it on cartridges like the 300 Win Mag consistently report it knocks the felt recoil down hard while keeping them settled on target for faster follow-ups. It's machined from high-grade stainless, built to last, and backs up the hype with real results in the field and on the line.
The Gen 2 uses a two-piece self-timing design with a separate nut, so as long as your barrel is already threaded to 5/8"-24 you can mount it yourself at home. There are no crush washers or peel washers to fuss with. Most folks have it on in about 30 seconds using just their hands and a crescent wrench.
APA built this brake for larger diameter barrels and recommends a muzzle diameter between .850" and 1.0". With its 1.115" body it pairs best with bull and heavy match-profile barrels found on magnum builds. The body cannot be turned down, so it's best matched to a barrel in that range rather than a light sporter contour.
It can be. The Fat Bastard is sized and bored for the big magnums like the .338 Lapua, so on a standard .308 it's larger and heavier than you'd need. If you're running a magnum or a large-diameter barrel, this is exactly the brake for it. For lighter cartridges, a smaller brake in the APA lineup is usually the better call.
Yes, and that's one of its best tricks. Because it's self-timing with a separate nut, you can pull it off one barrel and mount it on another in seconds without re-indexing. Competitive shooters who burn through barrels love this since it saves both time and gunsmith fees.
| UPC | 810131790844 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | G2F5838S |
| Model | |
| Thread Pattern | 5/8"x24 |
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