CMMG, Inc

CMMG Pistol Mk4 K PSB 5.56 NATO 12.5" Barrel 30 Rounds KeyMod Handguard KAK Shockwave Brace Black Finish

Name: CMMG Pistol Mk4 K PSB 5.56 NATO 12.5" Barrel 30 Rounds KeyMod Handguard KAK Shockwave Brace Black Finish
Brand: CMMG, Inc
SKU: 11241726
Availability: PreOrder

Item #11241726 MPN 55ADF38 UPC 815835018843

Caliber 5.56mm NATO

Condition New

Manufacturer

Name CMMG, Inc

Phone 660-248-2293

Website http://www.cmmginc.com

Address 620 County Road 118 , Fayette, MO 65248

The Mk4 K PSB includes the RKM11 KeyMod free floating hand guard. The barrel is a nitrided 4140 CrMo steel 12.5? barrel available in both 5.56x45mm and 300 AAC Blackout. The PSB features the KAK Shockwave Stabilizing Arm brace to improve controllability. Each rifle includes Magpul MOE pistol grip and trigger guard, along with a magazine and CMMG?s lifetime quality guarante.e

Specifications:

Caliber: 5.56mm

Barrel: 12.5? medium weight multi-role profile

Muzzle: A2 comp., threaded 1/2-28

Hand Guard: CMMG RKM11 KeyMod hand guard

Furniture: Magpul MOE pistol grip and KAK Shockwave Arm Brace

Receivers: Forged 7075-T6 AL M4 type upper, AR15 type lower

Trigger: Single stage mil-spec style trigger

Weight: 6.5 lbs (unloaded)

Length: 29?”

Gas Port Location: Carbine

All CMMG firearms are designed to function with a wide variety of factory loaded ammunition and undergo rigorous testing prior to release to ensure reliability and durability. Because CMMG relies on factory ammunition for testing, we cannot guarantee reliable function with handloads or reloads. Warranty claims due to handloads or reloads will be subject to review.

The information below comes from our Gun Caliber Dictionary and is for general reference only. It does not describe the specifications of this particular item.

The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington

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FFL required

This item ships to a licensed firearms dealer, not to your home. Your dealer completes the transfer and the required background check when you collect it. You can choose your dealer during checkout. How transfers work →

Returns and exchanges under our terms of sale.
Ships from our warehouse — shipping policy.
Talk to a person: 888-900-4868.

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CMMG Pistol Mk4 K PSB 5.56 NATO 12.5" Barrel 30 Rounds KeyMod Handguard KAK Shockwave Brace Black Finish · FFL required

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CMMG Pistol Mk4 K PSB 5.56 NATO 12.5" Barrel 30 Rounds KeyMod Handguard KAK Shockwave Brace Black Finish

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