M16 5.56 BOLT CARRIER GROUP CHROME MP Reviews & Ratings

Classic Retro Chrome M16 Bolt Carrier Groups match the finish of the bolt found on the earliest AR-15 & M16 rifles introduced.

The Brownells M16 Chrome 5.56 Complete Bolt Carrier Group included a bolt machined from 9310 steel, which is magnetic particle inspected & finished with a matte silver chrome finish. The carrier is fabricated from 8620 hardened steel and also receives the same, durable chrome application. In addition to the bolt and carrier, the extractor, gas key and cam pin also are chromed to ensure all moving parts are corrosion resistant. The Brownells M16 5.56 Chrome Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington.

The perfect complement to a retro build, these BCGs are available with or without forward assist serrations. The model without serrations is similar to the original BCG found on early AR-15s, such as the Air Force 601. The model with serrations could be found on early XM16E1 models in the mid-1960s.

Durable, matte silver chrome
Magnetic-particle inspected, 9310 bolt
M16 8620 steel carrier (works with standard AR-15 rifles)
Extractor includes spring and rubber insert
Includes torqued and staked gas key
Functions with any cartridge based on the 5.56 NATO cartridge case

The Brownells M16 Chrome 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.

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Reviews Summary

The M16 5.56 Bolt Carrier Group Chrome MP has received mixed reviews. Customers praise its quality, ease of cleaning, and attractive chrome finish, ideal for retro builds. However, issues with quality control, fit, and function are prevalent, leading to dissatisfaction. While some users report reliable performance, others experienced serious malfunctions, impacting their overall perception.

What Reviewers Are Saying

Product Quality

60%

The quality of the M16 5.56 Bolt Carrier Group varies significantly among users. Many commend the build quality and design, emphasizing the ease of cleaning and appealing appearance. However, a considerable number of reviews point out manufacturing defects, including poor machining and assembly issues that detract from the overall impression.

Functionality

50%

Reviews reflect contrasting experiences regarding the functionality of the bolt carrier group. While numerous users report smooth operation and reliability, others encounter significant issues such as gas leakage, jamming, and parts not fitting correctly, which raises concerns about quality control during production.

Ease of Cleaning

40%

Many reviewers highlight the bolt carrier group's ease of cleaning as a significant advantage, noting that the chrome finish helps reduce build-up and simplifies maintenance. This feature is especially appreciated by users who often shoot their rifles, making it a favorable choice for those prioritizing upkeep.

Aesthetic Appeal

35%

The visual appeal of the matte chrome finish is frequently mentioned, with customers expressing satisfaction with its retro look and quality. Users appreciate how well it integrates with their builds, contributing to a polished and authentic appearance, particularly for retro-themed firearms.

Customer Service and Support

25%

Several reviews touch on customer service experiences, with mixed outcomes. While some customers received prompt assistance regarding their concerns and returns, others noted delays or expressed disappointment in the quality of support provided. This inconsistency affects overall customer satisfaction.

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Good Enough for the Sale Price

Purchased the no serration version for an early AR clone, bolt appears to be hard chromed. Not as dull as the pictures make it appear, but not shiny chrome. Finish is 80%, inconsistent application on the locking lugs and gas key, and light scuffs throughout. I would send it back if I had paid full price, but on sale, this is the cheapest no serration option available. The one I received in April 2023, was an M16 style bolt with a shrouded firing pin, and the cam pin, extractor and bolt head are also hard chromed. Arrived bone dry in nice retro marked packaging. Bolt marked MP. Like the other reviewers mentioned the retaining pin is very stiff. The bolt fits in the carrier nicely, but the gas rings are loose on the bolt, so while the bolt to carrier fit is good, the bolt has a little side to side play. I am not sure if that will affect function. Overall, I think it's fine and for $100 on sale it's a good deal for a retro part.

by RS on April 15, 2023

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Nice looking BCG

Package was opened and there were marks on the firing pin retainer. The pin it would not fit flush into the Carrier. Overall it looks good but it wouldn't function without a new part or modification. I never tried it in my upper receiver so I returned the item.