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Modern Sporting Muzzleloader Upper


Turn any “mil-spec” AR15 into a tack driving muzzleloader and catch all the hunts!

Make it a Complete Package

In stock (can be backordered)

For our Modern Sporting Muzzleloader uppers, we use the same bolt action receiver from our UPR15 line. The receivers are machined from American 6061 billet aluminum with a pic rail on top and a 15″ MLOK handguard which gives you plenty of real estate for any peripherals you might add.

The barrels are a 24″, 416R Stainless Steel, 1 -20 twist barrel from Preferred Barrels. Recoil from the .45 caliber projectile is tamed by our dual port muzzle brake. Secured and running along the top of the barrel and protected by the handguard is the aluminum ramrod with brass jag.
The bolt is machined from American 4140 steel and features dual extractors to ensure the spent 209 primers won’t get stuck.

Whether you’re an experienced muzzleloader shooter or looking to get into it, look no further. The Uintah Precision Modern Sporting Muzzleloader is it!

This upper assembly is not a firearm, will ship directly to you and is legal to ship to any state.

.45 Caliber, 416R Stainless Steel barrel from Preferred Barrels, Cerakote finish
24″ barrel
1 – 20 twist rate
Dual Port Muzzle Brake
4140 bolt, dual primer extractors
6061 Billet Upper receiver
Aluminum ramrod with brass jag
209 primer ignition
Pins to any “mil-spec” AR15 lower

45 CALIBER24″1:20.875″3/4X24


Let’s break it down

Muzzle loader upper

Perfectly paired


Other UP rifles

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