Midwest Industries MI-AR-15 12.625" M4 Gen2 Free Float Handguard M-LOK Compatible Rifle Length
Adams Arms AR15 piston compatible (can conceal P series gas block) 2 piece rail system.
There are many variations in BILLET UPPER RECEIVERS on the market, please check with Billet upper manufacturer to insure fit of this handguard. This handguard is compatible with milspec forged upper receivers as well as the Midwest Industries billet upper receiver.
Keymod vs M-Lok: Which Will Set the Standard?
In 2012 Vltor introduced an “open source” universal attachment system for accessories called Keymod. The desire was brilliant to create an industry standard for directly mounting handguard accessories in a well engineered system with specifications available free for any manufacturer to use. Similar to a classic Beta vs VHS video tape battle, at the 2014 NRA annual meeting, Magpul introduced a new “open source” accessory attachment system known as M-Lok. While both systems are well designed and have the same goal, they have different solutions to the modular rail. I believe both will be around for quite some time since Keymod struck first and has quickly established a well accepted place industry wide. In addition to the powerful Magpul name though, M-Lok does offer several advantages that I feel will push it to the top: