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AR-15/M16 SINGLE SHOT MAGAZINE FOLLOWER Reviews & Ratings

If you are using the longer, heavier bullets in your AR-15, then you need a Sinclair AR-15 Single Shot Follower. The longer, heavier bullets are normally loaded longer than magazine length. The Sinclair AR-15 Single Shot Follower positions the 223 Remington cartridge loaded with longer bullets correctly for smooth feeding into the chamber. Once a round is fired, the bolt retracts and locks behind the follower in the empty/loading position. No need to take your magazine apart! It takes only a few seconds to install the Sinclair Follower on top of the existing follower. It can be removed just as quickly. This follower addresses many of the problems with existing single shot followers on the market. The satin finished anodized aluminum wears better than the plastic followers and is easily noticeable in the magazine. Works perfectly in GI metal magazines and Brownell magazines. Will not work in any of the inexpensive, plastic magazines we tested. Will work with 450 SOCOM and 450 Bushmaster.

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3 Stars

Reviews Summary

The AR-15/M16 single shot magazine follower has mixed reviews. Users appreciate its function in some standard metal magazines but report issues like jamming, improper fit in polymer magazines, and wear over time. While it works for single loading, many find that it fails to consistently chamber rounds, leading to frustration among competitive shooters.

What Reviewers Are Saying

Functionality

55%

Many users appreciate the follower's ability to work well in specified standard metal magazines for single loading. However, numerous reports of frequent jams and inconsistent performance indicate that while it serves some users' needs, it does not meet the expectations of others, especially competitive shooters.

Compatibility

65%

Compatibility issues are prevalent in reviews, with numerous users noting that the follower does not fit well in popular polymer magazines like ProMag, Magpul, or DPMS. This lack of clear compatibility specifications leads to dissatisfaction among customers who expect broader usability with various magazine types.

Wear and Durability

45%

A significant concern raised by reviewers is durability, with several stating that the follower wore out quickly, losing its ability to properly hold the bolt open after minimal use. This indicates that while it may initially function well, longevity is a critical flaw for many users.

User Experience

50%

Users express frustration with the performance of the follower during competitive settings, where consistent loading and chambering are crucial. Several competitors found themselves tinkering with the product in hopes of improvement, leading to an overall negative user experience for a significant portion of reviewers.

Installation Issues

30%

Some customers faced challenges during installation, including needing to modify magazines or adjust follower placement. This added complexity detracted from the overall ease of use, which is a point of concern for potential buyers looking for straightforward installation.

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AR15 Single Shot Follower

Love this item. Easy to install and remove in my metal AR magazine. Great for my slow fire events. Like to see one for the MagPul magazine.

by Alex Takaoka on June 06, 2025

Verified Purchase

Was this review helpful? 1

AR15 magazine single shot follower

good tool. easy to install in any ar 15 mag. works well for offhand and prone where you have to load one round per shot. prevents tip of match bullets jaming on the feed ramp bolt “gears”

by RON RIGA on October 02, 2023

Verified Purchase

Was this review helpful? 3

Worked Perfectly

I installed the follower in a 5 round Remington magazine. I had to remove the floor plate to install. I was unable to install from the top as the directions instructed. Once I did this it fit perfectly and worked well.

Great pice

Bought this for my custom build Precision AR-15. With my custom hand load .223 with 77 grain bullets, that is way too long (C.O.A.L) to fit in the standard length magazine. This was the answer to my little dilemma.

Works perfectly for Bushmaster .450

Using in metal Bushmaster .223 mags for Bushmaster .450 rifle. It does not work with the Magpul or Tapco plastic mags, but then again the .450 won't load in those because of the curved tops.

Used In Mosberg MVP Preditor

Used To Single feed Hornady 75 gr. A max,In A Mossberg MVP Predator, Worked great, also seemed to make it easier to ease the case out.

workes well for me

works well in colt and bushmaster mags

Good product

Wear and tear After years it wore out

Effective and well made

Works very well in standard AR15-style metal magazines. However, it doesn't seem to fit in the polymer ones (ProMag in particular). That's the only reason I rated it 4 stars - would have put 4.5 if allowed. Really nicely made and does exactly what I needed.

Make it from Delrin

Does not lock bolt open every time BCG gouges the follower Bought one years ago from Sinclair that is made from Delrin. Still works well I'll buy a Bob Sled next time