M-LOK® RAIL PICATINNY POLYMER FOR AR-15 Reviews & Ratings

Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Injection molded from a proprietary reinforced composite for enhanced strength and durability while remaining lightweight.

Rail Sections also feature beveled ends to reduce snagging and eliminate sharp corners and edges. All hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer hand guards and forends is included.

SPECS:

MAG593 - 11 Slots, max overall length of 4.9”
MAG592 - 9 Slots, max overall length of 4.1”
MAG591 - 7 Slots, max overall length of 3.3”
MAG590 - 5 Slots, max overall length 2.375”
MAG589 - 3 Slots, max overall length of 1.6”

See all of our AR15s and AR15 parts here.

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Reviews Summary

The M-LOK® Rail Picatinny Polymer for AR-15 is praised for its easy installation, lightweight design, and solid performance for mounting accessories. Users appreciate its value compared to aluminum options, though a few mention compatibility issues for specific setups. Overall, it's a reliable and cost-effective choice for AR-15 customization.

What Reviewers Are Saying

Ease of Installation

50%

Many reviewers highlight the simple installation and removal process of the M-LOK rails, which enhances user convenience and adaptability.

Product Versatility

40%

The product is noted for its versatility, with users successfully mounting various accessories such as flashlights and bipods, although some experienced compatibility challenges with front sights.

Build Quality

60%

Customers commend the high build quality of the polymer rail, likening it to aluminum in terms of durability and reliability, which bolsters confidence in its performance.

Value for Money

50%

Reviewers frequently mention the competitive pricing of the rail, often seeing it as an affordable alternative to aluminum options without sacrificing quality.

Installation Tools

20%

A minor point raised is the lack of a supplied hex wrench for installation, which some users found inconvenient, suggesting a need for included tools.

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Magpul M-LOK RAIL

These rails are easy to install and remove from my M-LOK rail when needed or not needed. Also is a good extra grip on the rail.

by WAYNE B. on January 25, 2024

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Great Pic Rail

The Magpul Polymer Picatinny rail is a fantastic accessory. I used mine to mount a flashlight to an AR handguard, but I would also trust it with a sling or bipod mount. It's that solid. Magpul are the experts when it comes to polymers, and this pic rail feels more like it's made from aluminum than polymer. The M-Loc T-nuts were of good quality, and the mounting screws came with thread locker pre-applied. The only minor issue is that you must supply your own 1/8" Hex wrench to install, none is included. Overall, a great pic rail at almost half the cost of aluminum, without giving up any of aluminum's durability, stiffness, or impact resistance.

It's MagPul

It's light, does the job. No issues.

It's MagPul

It's light, does the job. No issues.

Works fine for everything except BUIS.

Got this to mount a Troy Industries front sight to a WWSD 2020 rifle. Realized after mounting the rail that it wouldnt sit at the same height as the rail on the receiver, so its not appropriate for mounting a front sight to. Oh well. It works fine for mounting a B&T USA polymer bipod(like Ian uses on his WWSD 2020). Just gonna have to use either the Arisaka Low Profile pic rail or the one Sig makes for the Tread series. Maybe one of Lancer Systems rails would work too. Not a bad product. Great and lightweight option for mounting M-1913 accessories to M-Lok. Just dont assume itll work for a front sight like I did.