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MAGAZINE EXTENSION SUPPORT CLAMP Reviews & Ratings

Strong, lightweight aluminum clamp attaches securely to barrel to provide extra support for extended magazine tube. Eliminates unwanted vibration under recoil to ensure smooth, reliable feeding of rounds. Low-profile design, rounded edges, and flush-mounted hex-head machine screws prevent snags and damage to patrol car interiors; hardcoat anodized surface adds strength and exceptional resistance to surface abrasion. Available in Standard model and Tactical Rail configuration with Picatinny-type accessory rail that may be positioned on left or right side of clamp for mounting flashlights and other accessories. Also available for heavy barreled shotguns/Mossberg.

SPECS: Aluminum, hardcoat anodized, black, matte finish. Fits shotguns equipped with Nordic and DPMS extension tubes. 12 gauge only. Standard - 2 oz. (57g) weight. Rail - 2.6 oz. (73g) weight. Mossberg - Fits Mossberg shotguns, including the 590 and 930SPX.

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1 Stars

Reviews Summary

The MAGAZINE EXTENSION SUPPORT CLAMP is generally praised for its sturdiness and quality materials. While many users appreciate its precision and fit on various shotguns, some experienced issues with compatibility or necessary modifications. The lack of installation instructions and potential for finish damage are noted concerns, but overall, it comes highly recommended for enhancing weapon stability and light attachment.

What Reviewers Are Saying

Product Quality

75%

Overall, reviewers frequently commend the high quality of the MAGAZINE EXTENSION SUPPORT CLAMP. Many highlight the sturdy materials and precise machining, indicating it performs well in various applications. This theme resonates strongly, representing the product's reliability and effective design across different shotgun models.

Compatibility and Fit

60%

A common point of contention revolves around compatibility with specific shotgun models. While many found the clamp fit perfectly, several reviews noted difficulties or required modifications for certain installations. This theme emphasizes the importance of ensuring proper fit before purchase, as experiences can vary significantly.

Installation and Instructions

50%

Users often express a need for clearer installation instructions. While some managed to install the clamp easily, others struggled with issues like cross-threading screws. This theme highlights the potential for user error during installation and the importance of guidance for a hassle-free process.

Performance Under Use

70%

The clamp's performance during use, particularly under recoil, has been positively noted by many reviewers. Users appreciate that it stays securely in place while shooting, enhancing the shotgun's stability. However, some experienced movement issues due to improper installation. This theme stresses the clamp's intended functionality as a stabilizing accessory.

Potential for Damage

40%

Several users reported that the clamp could damage the finish of their shotguns, which is a significant consideration for potential buyers. This theme reflects the reality that while the clamp enhances performance, it may adversely affect the appearance of the firearm, leading to mixed feelings among users.

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" PERFECT FIT "

Purchased this for my Winchester SXP shotgun with a 24" barrel, added a 10 round Choate magazine tube extension, used this clamp to make it extra rigid.

by GARY K. on December 22, 2023

Verified Purchase

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I like it.

I have units on both an 870 and 1000. I attach an Inforce light. I use both in competition and tactical training. Yes you need to make sure the screws are straight and tightened evenly. They are made precisely. They need to be mounted with care. At first I thought they were a little pricey, but the precision is why.

Great part...

Well made part. Does its job and then some...

EXCELLENT FIT - GREAT QUALITY

This clamp fit my Remington 1100 with tube extension first time - no issues - no worries. Looks great and functions well... does not vibrate off during shooting. Highly recommend.

Presisely machined & sturdiest available

UNDERSTAND THIS MAY PERMANENTLY MARK FINISH WHEN USED. I Mounted clamp to a Benelli Nova Tactical w/ext. mag. Fit is perfect, does not shift. Slimmest and strongest design I've found(I'd use it as a club before using the poly buttstock!). Now my light doesn't shift when firing,and it looks "clean" too. This replaced a lower priced "universal" clamp manufactured by a different company. Wish Id saved money & bought this 1st!

Great product!

I added this to my new mossberg 930spx. Fits great and allowed me to add a light and sling.

Fits well on Rem 1100

This is one of those items that is expensive (in my opinion) once, but the right thing in the long run. The fit is perfect on a Rem 1100 with a Hastings retrofitted barrel and a 5 round Nordic magazine extension. It's easy to install, and doesn't require any modifying, changing or goofing with to get it to work exact as it is intended.

Excellent fit

I installed this on my Mossberg 930sp. The clamp is a perfect fit. The ONLY area that might be a problem for some people is the fact that the concave halves are not the same dimension, so there fore, when you start your screws to attach it, make darn sure you do not cross thread the screws (the body is alum and will cross thread easily). After firing 8 rds in rapid succession, there was absolutely no movement of the clamp. Great product and does exactly what I wanted it to do.

Good product, but did not fit.

I've read several places (including a review here) that this product fits on a Mossberg 930SPX, however i have found this untrue in my case. The "fingers" that go around the barrel were too small, and left large gaps on either side, as well as creating a weird angle between the two halves. the screws would bind when trying to tighten, because of the angle created between the two halves as mentioned above. It took some serious "massaging" with a file and sandpaper to get it to fit relatively flush. As i said, the product itself is well made, but for some reason it wouldnt fit my shotgun. Maybe i have a different generation of barrel or mag tube or something.

KILLS TWO BIRDS WITH ONE STONE

MOUNTS A GUN-LIGHT AND STRENGTHENS YOUR MAGAZINE TUBE AT THE SAME TIME. WELL DESIGNED AND PRECISION MADE. MUST BE REMOVED TO FIELD STRIP THE SHOTGUN SO NOW I USE A BORE-SNAKE TO CLEAN MY SHOTTY EVERY OTHER SESSION JUST SO I WON'T HAVE TO REMOVE IT EACH TIME I CLEAN IT. THAT IS NOT REASON ENOUGH NOT TO HAVE ONE MOUNTED ON YOUR GUN, HOWEVER.