Four Peaks Tactical ARs in 300 HAM’R — Big Boom By: Kat Ainsworth


There are a lot of AR-15s on the market, but they aren’t all created equally. That said, if you’re looking for a carbine capable of producing a bigger boom than the classic 5.56 NATO provides in a compact size, you should look at the Four Peaks Tactical AR-15 pistol and SBR. The two guns are chambered in the hard-hitting 300 HAM’R cartridge and designed for serious use.

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Four Peaks Tactical's popular AR-15 carbine in 300 HAM'R
Four Peaks Tactical’s popular AR-15 carbine in 300 HAM’R is also available as an AR pistol or SBR. (Photo credit: Four Peaks Tactical)

Ted Malone, a co-founder of Four Peaks Tactical, had a few things to say about the company’s hard-hitting AR-15 carbine:

Our new 11.3 inch carbine in 300 HAM’R provides excellent terminal performance, delivering more than twice the bullet weight of standard M193 or M855 5.56mm projectiles and launched with a muzzle velocity of approximately 2300 feet per second. It is 100% American-made and meticulously crafted by our veteran-owned family enterprise here in Arizona.

The Four Peaks Tactical AR pistol and SBR in 300 HAM'R use Wilson Combat upper receivers.
The Four Peaks Tactical AR pistol and SBR in 300 HAM’R use Wilson Combat upper receivers. (Photo credit: Wilson Combat)

The company released details of their 300 HAM’R:

The…11.3” barreled firearm was designed at the request of a law enforcement agency that was looking for a harder-hitting “breacher” caliber but one that retained the light weight and compactness of an AR-15 entry carbine.

They went on to say:

The 300 HAM’R round was developed by Bill Wilson of Wilson Combat to provide a superior 30 caliber round that rivals the 30-30 Winchester, but in the small frame AR-15 platform.

The 300 HAM’R was developed for optimal terminal performance in a standard AR rifle – and offers near .308 Winchester effectiveness while exceeding the ballistics of the famous 30-30 rifle – the most popular hunting cartridge of all time.
The 300 HAM’R cartridge has 18% more retained velocity 40% more energy and a 56% flatter trajectory than the 300 Blackout at 200 Yards! The 300 HAM’R has amazing accuracy and low recoil in a lightweight, compact, standard AR platform rifle that uses a standard 5.56 bolt. We recommend a 300 BLK magazine for best overall reliability. Ammunition and reloading dies/info is available from Wilson Combat.

300 HAM'R
Four Peaks Tactical makes both an AR pistol and an SBR chambered in the cartridge. (Photo credit: Wilson Combat)

Features of the AR-15 pistol

  • Billet Lower Receiver – Machined in house from Aircraft-grade 7075-T6 aluminum
  • SB Tactical SBA4 Pistol Brace
  • Wilson Combat Billet Upper Receiver
  • Wilson Combat 11.3” Match Grade Fluted 1:13 Barrel
  • Nickel Boron Bolt Carrier Group
  • Lightweight M-LOK Licensed handguard
  • Lightweight competition custom muzzle brake
  • Holosun 510-C Optic
  • 20-Round Polymer Lancer Magazine
  • Hard-sided plastic case
  • 3.5 pound Rise Armament Quick Reset trigger
  • Free floating MLOK handguard
  • Ambidextrous controls

The SBR version of this gun has similar features but also has a Rogers Super Stock. Four Peaks Tactical suggests potential buyers familiarize themselves with NFA laws prior to purchasing the SBR.

Four Peaks Tactical's 300 HAM'R
Details of Four Peaks Tactical’s 300 HAM’R lineup of guns. (Photo credit: Four Peaks Tactical)

MSRP for the Four Peaks Tactical AR-15 pistol and SBR chambered in 300 HAM’R are not yet known.

Would you be game to run an AR pistol or SBR in this caliber? Tell us what you think in the comments section.