The lines started blurring a long time ago when a certain American military unit started (re) realizing that they weren't the top shooters, nor close. The only difference between paper, steel, and flesh is the emotion we put into it- the guns don't know the differance.




There's about 30,000 words here for those with an inkling......


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From the first Carbon fiber freefloat handguards to the MK12, to the KAC MRE, to the MK12 Hollands, to the present Block II M4's, there's been a steady progression..... Irons, Aimpoints, EoTech's, magnifiers, 1-4x's, 1-6x's, etc....

Even the Marine Corps is coming on board- looking at 16 or 18in barreled M16's with collapsible stocks, extended freefloats rails, Giessele triggers, and muzzle brakes. Yes- muzzle brakes.


As for barrel length make mine 14.5in please. I can do 16's, but all considered the 14.5in is the sweet spot...



An extended freefloat rail is the biggest upgrade that can be done to an AR/M4.

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And is the first thing I would do to one. Yes- before a trigger, or even an optic.