CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
CMMG
$397.99
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
2 in stock
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Description
Description
The 5” 5.7x28mm Barrel and BCG Kit allows you to build an AR 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. CMMG’s 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a mil-spec AR15 Upper and work with either a CMMG Mk57 lower receiver or with a standard Mk4/AR-15 lower receiver (when using CMMG 5.7 AR Conversion Magazines).
Delivery Info
- Standard and Express delivery services are available for all items.
- Shipping costs are calculated at the checkout page (after delivery option & destination confirmation).
- Tracking is available for all delivery options.
- Items are delivered during standard business hours.
Reviews (9)
9 reviews for CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
Only logged in customers who have purchased this product may leave a review.
Dillon (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
Quick shipping and the product works flawlessly. TCM Defense Co. made the experience easy.
Darwin (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
Great experience with TCM Defense Co. – fast shipping and responsive customer service.
Emilia (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
This product is awesome! It works just as described, and I’m very happy with the purchase.
Daphne (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
Great quality, quick delivery, and top-notch customer service. TCM Defense Co. is my go-to.
Darby (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
The quality of this product is amazing. It was delivered fast and is exactly what I wanted.
Ophelia (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
The product works perfectly and was delivered on time. Couldn’t be happier with my purchase.
Travis (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
I’ve bought from TCM Defense Co. before and will continue to do so. Great service and amazing products.
Oriana (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
TCM Defense Co. has an outstanding selection of products, and their customer service is fantastic.
Eli (verified owner) –
CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 5″ Barrel Black
The customer service from TCM Defense Co. was quick to respond and very helpful. Great experience overall.