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BRN-4 Bolt Carrier Group, Phosphate Chrome

BROWNELLS - BRN-4 Bolt Carrier Group, Phosphate Chrome

5 Reviews

BRN-4 Bolt Carrier Group, Phosphate Chrome

Brownells #

430110990

MFR #

BRN-4-Magphos-Chrome-BCG

UPC

050806001978

$349.99

Purchase Limit

Out of Stock

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International purchase information

Specifications

Color:

Black

Carrier Type:

M16

Make Model Fit:

Brownells.BRN-4

Cartridge:

223 Remington,5.56x45 NATO

Finish:

Phosphate

Material:

9310

Item Weight (lbs):

0.800

Quantity:

Restriction

Restricted Part:

Yes

View US State Restrictions

Can we ship this to you? (US only)

How To Buy Guns Online

International purchase information

What is the BROWNELLS - BRN-4 Bolt Carrier Group, Phosphate Chrome?

BRN-4® Compelte Bolt Carrier Group with Manganese Phosphate Carrier and Chrome Bolt

Now offered with a chrome bolt and manganese phosphate carrier, this version of the BRN-4® Bolt Carrier Group is a great upgrade for any BRN-4 or replacement part for an MR556 or 416 rifle. The chrome bolt and cam pin make for easy cleaning and offers a great looking surface finish. The extractor has a phosphate finish, as this allows for a "grippier" interface with the brass, ensuring reliable and consistent extraction. The phosphate carrier is hardened to hold up to extreme firing schedules, such as sustained full auto fire. The tail of the carrier is enlarged to prevent any tilting from the piston impact. The full length carrier is an M16 type, and also has the MR556 cutout, making it compatible with MR556 and 416 upper receivers.

SPECIFICATIONS/ INCLUDES:

8620 steel carrier - Manganese phosphate finish
9310 steel bolt - Chrome finish
4340 steel Extractor - Manganese phosphate finish
S7 tool steel Ejector - Manganese phosphate finish
8740 steel Firing pin - Chrome finish
Extractor spring with black insert
Extractor o-ring, black type
Firing pin spring
Firing pin retaining pin

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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BRN-4® BOLT CARRIER GROUP PHOSPHATE & CHROME REVIEWS

4.2

5 Reviews

5 Stars

60%

4 Stars

3 Stars

40%

2 Stars

1 Stars

Reviews Summary

Overall, reviewers express positive sentiments about the BRN-4 BCG's quality, compatibility, and functionality, particularly with HK models. While most praise its thoughtful design, a few customers noted minor manufacturing flaws that fall short of expectations for a premium product. Despite these concerns, confidence in Brownells' customer service reassures buyers.

What Reviewers Are Saying

Product Quality

80%

Reviewers generally appreciate the quality of the BRN-4 BCG, highlighting its thoughtful design and functionality with various HK models. Most comments reflect satisfaction with its performance.

Compatibility

70%

Many users commend the product for its compatibility with both FRT systems and various HK upper receivers, emphasizing that it works seamlessly in multiple configurations.

Design and Features

60%

Several reviews mention the well-considered features of the BCG, including cut-outs for functioning with select fire lowers, showing that the product is tailored to specialist needs.

Manufacturing Concerns

40%

A minority of reviewers brought up manufacturing issues, specifically pointing out flaws like egg-shaped firing pin holes, calling attention to quality control for a product in the premium price range.

Customer Support

50%

Reviewers express trust in Brownells' customer service, indicating confidence that any potential issues will be addressed satisfactorily, reinforcing their overall positive outlook on the brand.

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Great product

This is a good quality item thats well thought out. It's F/A cut so it works with my FRT, it doesn't have the firing pin safety block so it works with any trigger and it has the cut out so it will work in any HK MR556.