Description
The CMMG MkG-45 Guard, 45 ACP, 16″ Barrel, 13rd, Magpul CTR Stock, Black is a purpose-built carbine that bridges the gap between a pistol-caliber’s manageable recoil and a rifle platform’s stability. It’s a modern sporting rifle chambered in .45 ACP, designed for reliable performance in home defense and tactical training scenarios where shot placement and control are paramount. This carbine offers a familiar AR-15 manual of arms paired with the substantial punch of the .45 caliber round.
Key Features
- 45 ACP Chambering: Delivers proven terminal performance with lower recoil impulse than 5.56mm, ideal for rapid follow-up shots.
- 16-Inch Barrel with Radial Delay Blowback: CMMG’s proprietary action system reduces felt recoil and bolt velocity for smoother cycling and enhanced durability.
- Magpul CTR Stock: Provides a solid cheek weld and adjustable length of pull for a customized, stable shooting platform.
- 13-Round Magazine: Offers a balanced capacity for defense or competition stages, feeding from reliable, dedicated .45 ACP magazines.
- Mil-Spec Compatibility: The lower receiver accepts standard AR-15 grips and triggers, allowing for extensive customization with common parts.
Specifications & Details
| Caliber | .45 ACP |
| Barrel Length | 16 inches |
| Overall Length (Stock Extended) | Approx. 35.5 inches |
| Weight (Unloaded) | Approx. 6.8 lbs |
| Magazine Capacity | 13 Rounds |
| Stock | Magpul CTR 6-Position |
When it comes to home defense, the MkG-45 Guard presents a compelling argument. The .45 ACP round is known for its stopping power, and launching it from a 16-inch carbine platform significantly increases velocity and accuracy over a handgun. The rifle’s weight and stock tame recoil, making it easier to manage under stress. You get a system that’s drop-in ready for optics and lights on its M-LOK handguard, requiring no gunsmithing to set up for a bedside or vehicle role. At a price of $1286.10, it positions itself as a dedicated tool for a specific mission profile.
Who It’s For
This carbine is for the shooter who values the .45 ACP cartridge and wants its performance in a more capable, accurate format. It’s ideal for home defenders seeking a soft-shooting, potent option, or for tactical trainers who want to practice with a rifle manual of arms using cheaper, subsonic ammunition. It also serves as a unique competition gun for PCC divisions where .45 ACP is allowed. The platform is mil-spec compatible, appealing to tinkerers who already have AR-15 parts and knowledge.
Pros & Cons
Pros: The radial delayed blowback system is a genuine advantage—it makes shooting .45 ACP feel like a firm push rather than a sharp snap. The use of a dedicated, reliable magazine is a plus over adapters. The Magpul CTR stock and standard controls create immediate familiarity for any AR-15 user.
Cons: The 13-round capacity is lower than many 9mm PCCs. Ammunition cost per round for .45 ACP is higher than for 9mm, which impacts training budget. With an overall length over 35 inches, it’s less maneuverable in tight quarters than an SBR or pistol-braced firearm.
Frequently Asked Questions
Q: Does this use Glock magazines or proprietary magazines?
A: The CMMG MkG-45 Guard uses CMMG’s dedicated, proprietary .45 ACP magazines, not Glock magazines. This design is optimized for reliable feeding of the larger .45 cartridge in the AR platform.
Q: Can I use my standard .45 ACP suppressor on this 16-inch barrel?
A: Yes, provided your suppressor is rated for .45 ACP and has the appropriate thread pitch (typically ½x28). The 16-inch barrel with subsonic ammunition makes this an inherently quiet host for suppressed shooting.
Q: Is this rifle compatible with parts from my other AR-15s?
A: Mostly, yes. The lower receiver accepts mil-spec AR-15 fire control groups, pistol grips, and safety selectors. The upper receiver, bolt carrier group, and magazine are specific to the CMMG .45 ACP radial delayed blowback system. This rifle is available at firearms-missouri.com for Missouri residents and nationwide, with an FFL transfer required for firearm purchases.
Consider the CMMG MkG-45 Guard if your needs align with a stable, soft-shooting platform for the .45 ACP round.
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