The APF DMR 2.0 is Alex Pro Firearms' AR-style rifle chambered in .22 ARC, built on a billet receiver set with an 18-inch 416 stainless barrel cut with a 1:7 twist. It runs a semi-auto action with ambidextrous controls and is finished in Flat Dark Earth Cerakote over an aluminum receiver. The rifle-length gas system and adjustable gas block are matched to the barrel for reliable cycling. 
 

Key Specifications 

• Brand: Alex Pro Firearms 
• Model: DMR 2.0 
• Caliber: .22 ARC 
• Action: Semi Auto 
• Barrel Length: 18" 
• Color: Flat Dark Earth 
• Finish: Cerakote 
• Material: Aluminum 
   

Detailed Features 

• Diamond-honed nitride M16 bolt carrier group uses a 6.5 Grendel-sized bolt face 
• .750 rifle-length gas system pairs with an APF adjustable gas block 
• Magpul ACS stock and Magpul MOE grip handle the furniture, with an APF M-Lok handguard up front 
• APF 3.5 lb. drop-in trigger replaces a standard mil-spec trigger 
• APF Butcher-16 muzzle brake caps the 416 SST barrel, and controls are ambidextrous for right- or left-hand use

The .22 ARC cartridge is still new enough that owners of the APF DMR 2.0 tend to talk about the platform as much as the caliber itself. Build quality comments on Alex Pro Firearms rifles generally focus on the billet receiver set and the nitride-coated bolt carrier group holding up well to repeated cycling.

Ergonomically, the Magpul ACS stock and MOE grip are familiar to anyone who has run other AR-pattern rifles, so the DMR 2.0 tends to feel like a known quantity to shoot even with a newer chambering. The adjustable gas block gets mentioned as a nice touch for tuning cycling to different loads.

Because .22 ARC ammunition and magazines are less common than mainstream AR calibers, owners note that component and ammo availability lags behind more established chamberings. Those already invested in the caliber see the DMR 2.0's factory-installed drop-in trigger and adjustable gas system as solid value for a purpose-built rifle.