Keymod

[ben4372]

I'm glad it's catching on. The rails are silly. Even with the rubble covers the 4 sided rails are rough.

[Brian]

Not a fan of a quad rail weight or small pic rail pieces. Happy with my build but do need a new km light mount.


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Keymod or not, that's a nice lower.

[HoneyBadger]

I love my 13" kmr. I definitely prefer to not have the extra weight and bulk of quad rails.

[Punkface]

I like it. Don't really care about the attachments though. I'm not one to put anything on a rifle. It's smooth, lightweight, and does it's job. If they come out with something lighter I'll move to that.

[Skully]

AS the local parts whore I have gone through plenty of different hand guard rail systems including 4 different Keymod rails and now an M-Lok rail. I have gotten rid of the keymod rails for many different reasons and from that perspective completely my own observation and opinion below.

KEYMOD and M Lok concept; love the idea of a "universal mounting platform" to replace 1911. The process has been slow to come to fruitfulness.

I would not directly relate KEYMOD or M LOK to being a "lightweight" Rail, over an old school quad rail yes, but there has been plenty of lightweight rails before KEYMOD ever hit the market. This is about the "universal mounting" concept.

KEYMOD:

1.) Been out for 2 years, took FOREVER for accessories and modified attachments to hit the shelves. Now there appears to be a health flow of stuff.
2.) Manufacturing of KEYMOD is a lot more complicated to do, therefore you see a lot of that cost to the end user.
3.) KEYMOD does not work on "plastic" very well.
4.) If the manufacture took shortcuts to get the hand guard to market cheap it is not in perfect "spec" and accessories dont fit perfectly.
5.) I have noticed the KEYMOD holes are not very strong if there was a lot of stress put against the item. ( I had a vertical grip attached to a rail section the pulled out of the rail, bent the lip on the keymod hole) the manufacture replaced the handguard for free as a defect. Worried me a little because it was nothing I haven't done before, Vertical grip as a barrier stop.
6.) KEYMOD mounting is directional not reversible in design.
7.) Inside the rails it is designed to fit flush, there is no hardware sticking up restricting space.

M Lok:

1.) MAGPUL designed as direct competitor to KEYMOD, to be cheaper and to work on all their plastic MOE accessories.
2.) Completely open source, MAGPUL doesn't make a penny on it, they do control the concept and property rights.
3.) A lot more manufactures signed up for the spec to produce M LOK; Geissele, ALG Defense, Midwest industries, and SLR Rifleworks immediately came out with product within 4 months.
4.) Easier and cheaper to manufacture a M LOK compatible rail.
5.) Brand new and not a lot of accessories, other than "rails" and some stuff from SLR but with just rails that is not the point of a new standard.
6.) From the looks (will know soon) the hardware with M LOK sticks up into the rail when attached, but the mounting is reversible and appears to be stronger.

For all that, I personally went to a Geissele SMR MK1 and am completely happy, wife will still have a keymod because the specific rail is the lowest weight and she aint very big and my Geissele is 14oz and hers is under 8oz.