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Pro Mag AR-15/M16 Bayonet Lug Accessory Rail PM216
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Most Helpful Positive Review Bayonet lug rail
The bayonet lug rail installed easily, with a much lower cost than quad rail. The forward mount does not affect the standard hand guard when not using the bi-pod. very stable platform with the set screw take up hardware. Pros: Easy to install, great for M4 uppers with bayonet lug Cons: Existing swivel mounts required to be removed for installation
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Bayonet Attached Rail...

by Michael Lanning, Verified Owner from OR, United States Written on November 11, 2017
Nice Accessory...Fit,s Perfect...Excellent Mount For A Bi-Pod Or Fore Grip...No Need To Change Front Hand Guard
I Installed On My M&P 15...Could Not Be happier...It Is Also An Ambidextrous...Sling Mount.............
Would recommend: Yes
Was it helpful to you? Yes | No

Not for me.

by Corwyn Best, from AZ, United States Written on November 8, 2017
Don't get me wrong, it's a good product, but after not being able to get a solid answer, I bought it to see. The major downfall in my opinion is that it completely covers the bayonet lug rendering it useless to me. Why put one part on that completely voids the use of a different part? And before you think you can, the position of the set screw makes it impossible to modify to accommodate the bayonet...
Would recommend: Yes
0 of 3 found the following review helpful.
Was it helpful to you? Yes | No

Great retrofit

by Faustus, from IL, United States Written on November 1, 2017
I had an older M4 with zero rail space and needed just enough room to attach a light. This did the trick exactly as advertised, turning the otherwise useless bayonet lug into a short 1913 rail perfect for my SureFire. It is solid, all metal construction, and the set screws attach it very securely—no wiggles or rattles. You do need to remove your forward sling swivel to attach the rail, but it comes with its own sling attachment slots on either side (as seen in product picture).

All in all a great product, and I would not hesitate to recommend it.
Would recommend: Yes
Was it helpful to you? Yes | No

Work for it's intended purpose, but...............

by George, from TX, United States Written on October 3, 2017
This appeared to be the easiest solution for mounting a Surefire light on my DPMS M4 upper, so I bought one. Once I opened the package indicating it was made in China, I saw that a mounting screw was covered in rust. After drilling out the rivet securing the sling swivel, I attempted to attach it but the radius of the base of the boss where the sling swivel attaches was interfering with the mount. Five minutes with a Dremel tool and a 1/4" carbide bit carving on the mount solved that problem. After installing it, I discovered that the rail has a slight upward tilt relative to the barrel. Maybe two or three degrees which is not a problem for my light, but could issue if you were mounting a laser with limited range of movement. Also, contact with any metallic object with remove the black finish. Certainly not an anodized or phosphate finish. Keep a can of flat black spray paint handy!
Pros:
  • Holds a light without using a hand shredding four sided picatinny rail
Cons:
  • Needed modification to fit my DPMS M4
Would recommend: Yes
Was it helpful to you? Yes | No

Great Item....

by Rocky, from CA, United States Written on June 11, 2017
Great item to cover your unused bayonet lug. It adds a rail, two sling mounts and looks great. Great for hunting and tactical applications. Easy to install, requires some drilling and basic skills, but still very easy. Highly recommend.
Pros:
  • Useful
Cons:
  • None
Best Used for:
  • Tactical , hunting
Would recommend: Yes
Was it helpful to you? Yes | No

Went on with no issues

by Creekin, Verified Owner from TX, United States Written on January 23, 2017
I had already removed the original front sling mount from my Colt 6920 so this slid right on. A little blue loctite on the 2 screws and it's been rock solid. I thought it might look a bit awkward but it fits really nicely with magpul hand guards. I wish the sling slot were a little wider but it works.
Pros:
  • Ease of Install
Cons:
  • None
Best Used for:
  • your neglected bayonet lug
Would recommend: Yes
Was it helpful to you? Yes | No

Pro Mag Bayonet Lug Accessory

by Edwin, Verified Owner from CA, United States Written on January 22, 2017
I really like this solution for my S&W AR 15 Sport II. I spent a lot of time researching bipods that will utilize the bayonet lug on my AR, but found very few...and of the few I didn't get the best feeling after reading everyone's reviews. This piece is well built and slid onto my bayonet lug just find, and accomplished what I wanted, I wouldn't have to give up any space on my carbine length forward grip, and it positions the bipod at the right pivot point on the barrel. An added benefit is now picatinny rail feature opens The door to many bipod brands and choices. Happy hunting!
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

AR-15 Bayonet Mount Picatinny Rail

by Edward, from FL, United States Written on December 1, 2016
I used this mount on a Bushmaster QRC rifle. It works as advertised to mount my bipod. It did take a little filing to make the screw holes line up. In general, a five minute job turned into a 30 minute job, but it does work well once it is installed. The mount has two slots for a sling. My 1 1/4 inch wide sling worked, it is a little tight, but not a problem.
Would recommend: Yes
0 of 1 found the following review helpful.
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Bayonet lug mount rail

by Nitro46, from MI, United States Written on August 19, 2016
I put it on windham unit. I like it. The fit and finish was good. I choose to mount a handgrip to this rail. This slides on bayonet lug which is part of the gas block. You need to remove roll pin used to secure sling just forward of hand guard, with roll pin and sling hardware out of the way, put enclosed bolt though this lug rail. I think this might also be a great spot for laser site as well.
Would recommend: Yes
Was it helpful to you? Yes | No

100% Satisfied

by Lost in the Woods, from WV, United States Written on July 15, 2016
If you want to add a laser or light under your AR and you don't want the expense of hassle of adding a quad rail then this is for you. (I hate mounting lights on the side of the gun, it's just not clean) this mount slides onto the bayonet lug below the front sight mount and secures with a couple allen heads. You will however need to remove your stock sling mount to make room, I found it easier to drill out the pin on sling mount than to try and bang it out. this is top shelf stuff guys and gals, I highly recommend, it's sturdy, well made and looks great. I have 3 of them on stock builds.
Pros:
  • Easy to install
  • good looking
  • Well-made.
Cons:
  • None
Best Used for:
  • mounting lights and lasers underneath
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.