Was There a ‘Format War’ Between KMR and MLOK?

**kremtok** · 11-16-17, 11:51

Greetings folks,

With BCM’s recent decision to offer MLOK rails and accessories alongside their KMR lineup, I’m wondering if there was a ‘format war’ going on or if it was simply a matter of offering up two different systems intended to live side by side.

What do you think? Will one eventually stand alone or will the two attachment systems live alongside M1913 until the next best thing comes out?

**albatros43** · 11-16-17, 12:08

Originally Posted by kremtok

Greetings folks,

With BCM’s recent decision to offer MLOK rails and accessories alongside their KMR lineup, I’m wondering if there was a ‘format war’ going on or if it was simply a matter of offering up two different systems intended to live side by side.

What do you think? Will one eventually stand alone or will the two attachment systems live alongside M1913 until the next best thing comes out?

Supposedly MLOK won the war

**bad aim** · 11-16-17, 16:02

Oh yeah, there definitely was some competition between the two formats. But slowly and surely, MLOK seemed to be more popular and USSOCOM/NSWC Crane's testing that MLOK was a superior platform kinda pushed Keymod further away.

**BoringGuy45** · 11-16-17, 16:48

My first build was going to have a Keymod rail. I found that no matter what I did or how hard I torqued the screws, everything came undone...and this was without any rough handling, even shooting a single round through it! I used good parts (Geissele rail, BCM and Noveske attachments), but every rail piece, grip, and rail cover seemed to work itself loose. So, I sold it on TOS and bought an ALG EMR 3. I just put a Centurion CMR 10.5" MLOK on my SBR. Everything stays locked up tight.

I don't think there was really ever a "war". Both Vltor and Magpul were smart by making their designs open source, and more or less letting user feedback do the talking (I know it was no doubt more complicated than that, but you get the idea). I don't think there were really any camps that were totally passionate about one and hating the other to the point of looking down on its supporters. Keymod didn't work for me, but I know a lot of people who like it. Good for them. Whatever works. At the end of the day, it's not as vital to the operation of the rifle as most of the other parts.

I'd like to see the NSWC Crane test between the MLOK and Picatinny. It's seems to be the conventional view here that Picatinny is still the strongest, most solid format of the three. But it's been mentioned (speculated) that MLOK is a close second, and maybe as strong. I'd be interested to see if that's true. Also, if it's NOT true (that is, the Picatinny is far-and-away, without argument, the strongest attachment system), is the MLOK still viable for a hard use/SHTF/combat worthy rifle? Or is it best for competition and home defense only?

**GH41** · 11-16-17, 16:12

I don't see a war taking place at all. People just get all excited about the latest thing. I have been invested in Keymod from the beginning and see no reason to change. Despite some reports of failures I have seen none that weren't the result of improper use. Having said that I think Mloc accessories are not as prone to being installed wrong. KeyMod requires an attention to detail that some people just don't posses. If a person doesn't feel comfortable changing a tire on his truck he would be better off with Mloc. Even though I am a Keymod fan I will predict Mloc outlasting it. If I could have the perfect rail it would be smooth, lightweight and have 4 short builtin sections of picatinny at the muzzle end and QD sockets on both sides on the receiver end. Made by BCM with their attachment system. For all I care It wouldn't need to be KM or ML.

**C-grunt** · 11-16-17, 16:28

I think the NSW test pretty much killed keymod. It will be a round for a long time still but Mlok definitely won. Also SOCOM has already solicited one rifle with Mlok in the CSASS.

**GH41** · 11-16-17, 19:57

Originally Posted by C-grunt

I think the NSW test pretty much killed keymod. It will be a round for a long time still but Mlok definitely won. Also SOCOM has already solicited one rifle with Mlok in the CSASS.

MagPul didn't win anything. All test are subjective. Magpul is a heavy hitter with the financial ability to get any result they want from the test.

**kwelz** · 11-16-17, 20:22

Originally Posted by GH41

MagPul didn't win anything. All test are subjective. Magpul is a heavy hitter with the financial ability to get any result they want from the test.

I prefer Keymod but I have to disagree with this statement. In the testing M-lok proved to be stronger and have some nice benefits.

Will this matter in day to day use? That is up for debate. But M-lok was shown to be superior in a number of ways.