We often hear a lot about how great the M-LOK® system is for mounting accessories on AR-15 handguards. But HOW do you do it? How exactly do you use M-LOK’s cammed T-nut fasteners to install those accessories? Sit back because Brownells Gun Tech™ Caleb Savant is going to show us exactly how it works by installing a Picatinny rail segment on his AR-15’s M-LOK handguard. And installing ANY M-LOK accessory works pretty much the same way. The M-LOK system eliminates the M1913 Picatinny railed handguard‘s bulk, weight, and tendency to remove skin from your hand. (To get a full comparison of M-LOK to Picatinny and KeyMod, search for our Smyth Busters video, “M-LOK vs. KeyMod – Which is Better?”) With M-LOK a pair of screws go through the accessory into little T-nut mounting plates that slip through slots in the handguard. As you tighten the screws, the plates rotate 90 degrees so they can’t slip back out through the slot, and they lock down solid as you tighten the screws more. It’s easier done than said! Removing the M-LOK accessory is even EASIER. Oh, now you want to put it back on? Reinstalling is almost as easy. Bonus benefit: M-LOK’s excellent return-to-zero capability.
The M-LOK® system was originally developed by Magpul, who licenses it to other manufacturers free of charge, as long as those manufacturers ensure their products meet the M-LOK specs and display the M-LOK® logo on their products.
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Very well explained tutorial thanks!
So I was looking at these and noticed they have 3, 5, 7,etc slot picatinny rails. What slot number should I get to mount a flashlight? Unfortunately the flashlight in question doesn't mention this.
Just watched a different video, and while it got the job done, it was a little more clumsy than this one. Great tips and great job! Now I can put my M-LOK system to work!
Super helpful video. Thank you for not "ASSUMING" everybody knows. Many of us are starting from square one. That makes your video extremely valuable to us newbies.
Rocking that Brrownells Special Edition Dixxon Flannel!
Well done thank you
It took me 3 hours before you helped me
Is this a tutorial for how to mount Picatinny accessories?
Or, one for how to mount a single M-LOK accessory?
Thanks bro!
Algorithm defeated
Thank you sir. I bought a Rossi lever action that said it was m lok. I had no idea what it meant. Now I do. I’m use to rails. Thanks again.
After like four other videos, this one was the one that actually helped 💯💯
I appreciate your hair.
Thank you. First time here.
What size Torx did you use to tighten those screws? Thanks!
Gave up after 30 minutes of trying
ok i bought an angled hand grip for my daughters ar , its piccatinny rail (standard -20mm) so i bought an m lok 210mm hand rail ( long way round i know) shes short ! needs the fore grip low profils and close to the mag , so iv had to bolt the grip directly to the rail for the lower profile fit she needs ( should have looked for m lok ) 😃😃
Bro's hair is on point
Great tutorial, Caleb! Thank you!
The one I got is extreme chinesium and does not want to work like that
Excellent video.
This guys hair is a potential source of ignition.
The guy at the pawn shop told me to use a pair of needle nose pliers…. sure am glad I looked it up first. Thanks for the video.
I hope whoever designed MLOK has already passed away in a horrendously painful manner. This shit is stupidly complicated compared to a pic rail that you just have to turn two screws and your shit is attached. This bs has 3x the pieces and takes 20x as long to install
Well, I've been making this far harder than it had to be…
I like that shirt, where can I get one?
If only it were that easy to get the nuts to the right point at first. I've had issues with MLOK for years where the nuts routinely tighten down just fine but end up being parallel to the opening in the rail instead of secure and perpendicular.
It's simple videos like this that a lot of people don't know how and are afraid to ask. I was showing a guy at a gun store how to mount a red dot that has a qd mount and it created an audience of people who simply did not know. Great video
Does the Magpul polymer rail fit in M-Lok handguard?
Idk ,I’ve tried mounting m lock ,3different ways ,and still had to go in back w/a dentist pick to place the nuts parrelel,to get it to mount correctly ? All the other ways of doing it ,never work for me ?
Can someone tell me what handguard that rifle has on?
Umm, I just looked and I'm confused as to why is it Brownells only has 279K subs? Very weird. Anyway, great tutorial and video as always. Everybody has to learn. I just taught another guy at the gun shop this yesterday! I'd say it was the algorithm listening for recommendations but this is a brand new video. Lol. 🐍🇺🇸
caleb looking like a straight customs chad with that flannel on. give this man a mutant and a slick!
Someone share this with Jake over at 1911 Syndicate he has a rough time with m-lok.