APF MLR, Semi-Automatic, .300 Win. Mag., 22" Stainless Barrel, 5+1 Rounds

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Key Features

  • .300 Winchester Magnum
  • 5+1 rounds
  • 22" 416 stainless steel heavy barrel
  • Luth-AR MBA-2 stock
  • 15.5" M-Lok handguard
  • MLR muzzle brake
  • CMC® 3.5-lb. flatblade trigger
  • Includes (4) 5-rd. magazines

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APF® MLR .300 Win. Mag. Semi-automatic Rifle

From APF®'s Magnum Long Rifle (MLR) Series, engineered for maximum power and accuracy, along with the modularity and familiar handling characteristics of the AR platform. Alex Pro Firearms® spared no expense: every component has been carefully considered—from muzzle brake to buttstock—to deliver optimal long-range performance.

It starts with the premium 416 stainless steel barrel. Stainless steel is the top choice for accuracy and repeatability—and if you're pushing the .300 Win. Mag. to 1,000+ yards, accuracy and repeatability are king. The barrel comes with Alex Pro's own triple-port MLR brake to control muzzle impulse.

The go-switch is a CMC® 3.5-lb. flatblade trigger. There's almost no take-up…it breaks like glass right at 3.5 lbs., and it resets quickly. The stock is a Luth-AR® MBA-2 that's lightweight and gives you a much better cheek weld. Rounding out the impressive list of features are an ERGO® SureGrip pistol grip that fits nicely in the hand, and a 15.5" M-Lok handguard that gives you plenty of accessory options.

More on Alex Pro Firearms

APF products are made right here in The Guide's own backyard: Alexandria, Minnesota. We know the folks at APF. We know their products are designed and built in-house…and that means they can deliver outstanding quality at a fair price.

  • 22" 416 stainless steel heavy barrel delivers pin-point accuracy
  • Barrel is threaded 5/8x24 for accessories
  • MLR triple-port muzzle brake helps contain muzzle impulse
  • CMC® 3.5-lb. flatblade trigger breaks like glass, has almost no take-up, and resets quickly
  • Luth-AR MBA-2 stock is lightweight and provides a comfortable cheek weld
  • 15.5" M-Lok handguard with Picatinny rails at 12 o'clock and 6 o'clock
  • ERGO SureGrip provides a nice, comfortable feel
  • .936" gas block
  • Includes (4) 5-rd. magazines

Order today!

Key Specifications

  • Item Number: 708512
  • Caliber: .300 Winchester Magnum
  • Action: Direct impingement
  • Gas System: Rifle-length
  • Capacity: 5+1
  • Barrel Length: 22"
  • Barrel Material: 416 stainless steel, heavy
  • Barrel Twist: 1:10"
  • Stock: Luth-AR MBA-2
  • Upper Receiver: Forged 7075-T6
  • Lower Receiver: Forged 7075-T6
  • Pistol Grip: ERGO SureGrip
  • Fire Control: CMC 3.5-lb. flatblade
  • Handguard: 15.5" M-Lok
  • Flash hider: MLR triple-port brake
  • Overall Weight: 9.8 lbs.
  • Mfg. Number: APF MLR300WM
  • UPC: 752830318014