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Earlier this year, CMMG unveiled its MkG45 Guard pistol caliber carbine in .45 ACP. Now, the Guard lineup is expanding with the introduction of the MkGs Guard chambered in 9mm. Like its predecessor, it’s fed from factory Glock mags and runs on the company’s radial delayed blowback operating system.

According to the presser, CMMG purpose-built its radial delayed blowback system to chamber .45 ACP, which required a new operating system that could compensate for its recoil impulse without adding more weight to the carrier and buffer. Now, using the same system to chamber 9mm, the MkGs Guard boasts a lighter buffer and bolt carrier group than other 9mm pistol caliber carbines out there that use a straight blowback system. The combined weight difference of the BCG and buffer in straight blowback vs radial delayed blowback can be as much as 6.5 ounces, the company claims. This reduction makes it a smoother shooting firearm and makes it easier to keep follow-up shots on target.

CMMG also placed a premium on equipping the MkGs Guard with fully functional AR-15 controls, including last round hold open. The gun boasts a new dual-pinned, fully machined bolt catch linkage, which allows for reliable operation right out of the box, with no need for adjustments. In addition, the actuation from this linkage is robust enough that it still uses a standard bolt catch spring.

Ideal for home defense, pistol caliber carbine competition or as a plinker, the 9mm CMMG MkGs Guard ships out with one 33-round factory Glock magazine and is available in six different configurations: four rifles and two pistols. See below for a breakdown of each.

Rifle, MkGs Guard T, 9mm

  • Part#: 99AE631
  • Barrel: 16″ M4 4140CM SBN, 9mm
  • Muzzle: CMMG A2 Comp, Threaded ½-36
  • Handguard: CMMG RKM11
  • Furniture: A2 Pistol Grip, M4 butt stock with 6-pos mil-spec receiver extension
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: CMMG Single Stage Mil-Spec style trigger
  • Magazine: Glock 9mm 33 round
  • Weight: 6 lbs (Unloaded)
  • Length: 32.5″ (Stock Collapsed)
  • MSRP: $1,299.95

Rifle, MkGs Guard DRB, 9mm

  • Part#: 99AE6C2
  • Barrel: 16″ M4 4140CM SBN, 9mm
  • Muzzle: CMMG SV Brake, Threaded ½-36
  • Handguard: CMMG RKM14
  • Furniture: Magpul MOE Pistol Grip, Magpul CTR stock with 6-pos mil-spec receiver extension
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: CMMG Single Stage Mil-Spec style trigger
  • Magazine: Glock 9mm 33 round
  • Weight: 6.2 lbs (Unloaded)
  • Length: 32.5″ (Stock Collapsed)
  • MSRP: $1,399.95

Rifle, MkGs Guard DRB2, 9mm

  • Part#: 99AE67B
  • Barrel: 16″ M4 4140CM SBN, 9mm
  • Muzzle: CMMG SV Brake, Threaded ½-36
  • Handguard: CMMG RKM14
  • Furniture: Magpul MOE Pistol Grip, Magpul CTR stock with 6-pos mil-spec receiver extension
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: Geissele Automatics SSA
  • Magazine: Glock 9mm 33 round
  • Weight: 6.2 lbs (Unloaded)
  • Length: 32.5″ (Stock Collapsed)
  • MSRP: $1,599.95

Rifle, MkGs Guard PDW, 9mm, NFA

  • Part#: 99A51EC
  • Barrel: 8″, 1:10 twist, Medium Taper, 4140CM, SBN
  • Muzzle: CMMG A2 Comp, Threaded ½-36
  • Handguard: CMMG RKM7
  • Furniture: Magpul MOE Pistol Grip, Magpul MOE stock with 6-pos mil-spec receiver extension
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: CMMG Single Stage Mil-Spec style trigger
  • Magazine: Glock 9mm 33 round
  • Weight: 5.2 lbs (Unloaded)
  • Length: 25″ (Stock Collapsed)
  • MSRP: $1,349.95

Pistol, MkGs Guard PDW, 9mm

  • Part#: 99A5165
  • Barrel: 8″, 1:10 twist, Medium Taper, 4140CM, SBN
  • Muzzle: CMMG A2 Comp, Threaded ½-36
  • Handguard: CMMG RKM7
  • Furniture: Magpul MOE Pistol Grip, CMMG Pistol receiver extension
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: CMMG Single Stage Mil-Spec style trigger
  • Magazine: Glock 9mm 33 round
  • Weight: 4.9 lbs (Unloaded)
  • Length: 24″
  • MSRP: $1,299.95

Pistol, MkGs Guard PDW PSB, 9mm

  • Part#: 99A51DC
  • Barrel: 8″, 1:10 twist, Medium Taper, 4140CM, SBN
  • Muzzle: CMMG A2 Comp, Threaded ½-36
  • Handguard: CMMG RKM7
  • Furniture: Magpul MOE Pistol Grip, KAK Shockwave Stabilizer and Tube
  • Receivers: Billet 7075-T6 AL Lower, Forged 7075-T6 AL Upper
  • Trigger: CMMG Single Stage Mil-Spec style trigger
  • Magazine: Glock 9mm 33 round
  • Weight: 4.9 lbs (Unloaded)
  • Length: 24″
  • MSRP: $1,349.95

For more information, go to cmmginc.com.

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