Filters
Account Wishlist
My CART
{brtheme_woo_cart_item_count}

My Cart ({brtheme_woo_cart_item_count})

Oops! There is nothing in your cart, yet. Here's what you can do:

Close modal

or

Shop Now

CMMG BBL AND BCG KIT 16.1″ 5.7X28MM

CMMG BBL AND BCG KIT 16.1″ 5.7X28MM

$450.00

3 in stock

Purchase & earn 450 points!

Disclaimer: It is the customer’s responsibility to ensure that all orders comply with applicable local and federal regulations. Non-compliant orders are subject to a 30% restocking fee. We reserve the right to dispute any chargebacks related to such orders.

Guidelines for Shipping Restrictions by State

The 16.1″ 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG’s patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system and still provides essential features like last round bolt hold open. CMMG’s 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a Mk4/mil-spec AR15 upper and work with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver (when using CMMG 5.7 AR Conversion Magazines).

Your Trusted Online Firearms Store – Shop with Confidence!

Looking for the best prices on CMMG BBL AND BCG KIT 16.1″ 5.7X28MM by CMMG? ADA Armaments LLC proudly serves Boise with unbeatable pricing, expert service, and exclusive rewards.

Best Prices in Boise.
Earn Rewards on Every Purchase.
Special Bundles & Firearm Packages Available.
Safe & Secure Checkout – Shop with confidence using trusted payment options.
Compliance-Ready – All sales follow federal, state, and local firearm laws.

No shipping to California.

Limited Stock – Visit Us Today or Shop Online Before They’re Gone! 

UPC

810097502413

Manufacturer

Manufacturer Part Number

57D0476

Barrel Length

16.1"

Caliber/Gauge

5.7 x 28 mm

Length

16.10"

Model

Replacement Barrel

Product Type

Barrel

SKU: RSR|CMMG57D0476Categories: AR15 BarrelsTags: Online Only

The 16.1″ 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG’s patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system and still provides essential features like last round bolt hold open. CMMG’s 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a Mk4/mil-spec AR15 upper and work with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver (when using CMMG 5.7 AR Conversion Magazines).

Your Trusted Online Firearms Store – Shop with Confidence!

Looking for the best prices on CMMG BBL AND BCG KIT 16.1″ 5.7X28MM by CMMG? ADA Armaments LLC proudly serves Boise with unbeatable pricing, expert service, and exclusive rewards.

Best Prices in Boise.
Earn Rewards on Every Purchase.
Special Bundles & Firearm Packages Available.
Safe & Secure Checkout – Shop with confidence using trusted payment options.
Compliance-Ready – All sales follow federal, state, and local firearm laws.

No shipping to California.

Limited Stock – Visit Us Today or Shop Online Before They’re Gone! 

UPC

810097502413

Manufacturer

Manufacturer Part Number

57D0476

Barrel Length

16.1"

Caliber/Gauge

5.7 x 28 mm

Length

16.10"

Model

Replacement Barrel

Product Type

Barrel

Welcome to ADA Armament, in order to browse our site you must be at least 18 years of age.

Are you at least 18 years old?

YesNo