Veterans Day Saving Are On! - Take 17.76% Off Almost Everything
Use Code: HONOR1776

24 Hour Flash Sale - 10% Off Regular Priced Ammo w/ Code: AMMO10

M16 5.56 BOLT CARRIER GROUP Reviews & Ratings

Matched bolt/carrier set is machined to mil-spec dimensions using the latest manufacturing and quality-control techniques to deliver superb reliability in both semi-auto and select-fire rifles. Carrier is hard-chromed inside and has an M16-type full-length shroud on the underside to trip the auto sear on full-auto/burst rifles. Bolt is magnetic particle inspected to ensure there are no internal flaws to compromise structural integrity and cause premature failure. Fully staked carrier key and tool steel extractor further aid reliable cycling. Laser-engraved Spike’s Tactical logo on the side of the carrier is visible when the ejection port door is open. .223/5.56 fits standard AR-15/M16/M4 rifles and is available with standard MIL-STD-171 5.3.1.2 phosphate finish.

SPECS: Bolt – Carpenter 158 steel alloy. Carrier – 8620 carbon steel, chrome lined. Available with mil-spec phosphate finish, matte black.

See all of our AR15s and AR15 parts here.

View Product

Write a review

3 Stars

Reviews Summary

The M16 5.56 Bolt Carrier Group receives mixed reviews. While many customers praise its performance, value, and extractor strength, others raise concerns about inconsistent quality, fit issues, and production shortcuts. There's a consensus on the need for thorough cleaning before use, with complaints about inadequate branding and finishes appearing in several reviews.

What Reviewers Are Saying

Product Quality

67%

Reviewers express varied opinions on the quality of the M16 5.56 Bolt Carrier Group. While some commend it for solid performance and reliability, others report inconsistencies in fit and finish, suggesting a decline in quality control possibly due to high production demands.

Value for Money

50%

Many customers highlight the bolt carrier group's competitive pricing as a key selling point. They appreciate the overall functionality at its price point, often comparing it favorably against more expensive brands, indicating that it provides great value.

Cleaning and Maintenance

60%

Several reviews mention the necessity of thorough cleaning before installation due to excessive grease. Customers unanimously agree that despite being factory tested, the product arrives dirty, necessitating preparation to ensure optimal performance.

Fit and Compatibility

33%

A few reviewers experience issues with the bolt's fit in their AR setups, specifically mentioning that it doesn't lock as intended. This raises concerns about possible manufacturing variations leading to compatibility problems with specific models.

Branding and Authenticity

40%

A significant number of reviewers are uneasy about the authenticity of the product, noting discrepancies in branding, such as missing logos or indications of origin. This has led to suspicions regarding the quality and reliability of the item received.

Sort by Filter by rating

Perfection!

Runs great! Over 500 rounds with no issue. Everything Ive gotten from ST is top notch!

Great BCG

Works flawlessly, and it's a great value at $140

Perfect Complete BCG!

A great and inexpensive complete bolt carrier group! Spikes knocks it out of the park with this. The bolt has the strongest extractor I have ever seen and even has an extra poly 'doughnut' aside from the normal spring and poly post on the extractor. As I've used several of these, I have never had a bad lock-up with a chamber or found one to be out of spec. Do note that you need to clean it extremely well before install as it is covered in sticky thick yellow grease - it IS standard I know - but this stuff just seemed extra thick.