18 inches = better velocity and accuracy. Collapsing stock is more portable. I also have a colt non 16 inch barrel select fire m4( yeah I know it not techniquely a m4 but it's close)

I like the bcm products. Voltor is the upper I am planing on getting

Either the VIS or the MUR. Bcm offer a stainless barrel with a 1-8 twist with a voltor upper.

I have about 3\4 of cash saved for the gun... Time to start shopping!

EOtech or aimpoint.... Or a 1-4 scope???

Good deal man, keep us in the loop.

Question...for Recce...any reason you're going for a full length rail system (ie: vis / mur)?

I just received my first NSR from Noveske....it's phenomenal. Mine is only 9", which is what I wanted for my app...but a 13.5" (or 11") would be ideal for what you are wanting to build. Might be an option, if you're willing to buy a BCM stainless 16" upper (no forearm), buy an NSR separately, and have Ranier or ADCO install it for you on the BCM. You'll need a low profile gas block, but you can order that from Noveske when you order the NSR. Food for thought...they are light weight as hell.

I don't think I've mentioned this...but I also enjoy the Spike's Tactical ST-T2 buffers.

Recce spec includes a variable scope, if I recall correctly. Although, from that perspective, there is no official Recce spec...only a format, so to speak.

Depends on your intended use, GD. I have not done well "in the field" with the variable scopes. I don't like the eye relief challenges. I am a HUGE fan of the Aimpoint T-1...KAC or Larue mount (I use a Larue). Lightweight, Fast acquisition, Insane battery life, and robust as hell.

It's personal preference over the EOTech (you need to have fun behind both before deciding...find a gunshop, turn them on and play around with them....move fast around isles while keeping it in front of you....also, try setting it on an object and focusing on something far away outside 100-200 yd targets if possible). This will give you a feel for how you like the different reticles for CQB vs. Steady Range shots. I like simplicity...and the single red dot does it for me. The EOTech is too busy for my personal preference....but, that's just me. It's like Glocks vs 1911's. You need to try it.

i am trying to keep this rifle under $1500. i dont really undestand how to do what you are recomending. i am also trying to figure out how to buy the bcm lower. i have never done this before so itis all new to me.
if i get a aimpoint or eotech i will get the three power magnifire. i am disipointed in my leupold one point twofive by four power ar scope but thought that the night fource nxs or trijicon might work better. i didnt know youcould get the parts for the rifle and have a company build it for you as i said i am not sure how it works the daniel defence 12 inch light rail looks cool i will have to chec out the nsr rail.

new thought... bcm 410 stainless or cold hammer forged. the stainless has a 1-8 and the chf is 1-7. sounds like poeple are easly getting sub moa with either barrels.

i also saw that lmt offers their defender lower with a preinstalled two stage trigger and a amb selector. it also comes with a fde ergo grip and sopmod stock. they have the same lower kit with a sindle stage trigger that is a little cheaper. is there any advantge in having a two stage vs a single?

i have been doing soom research. i am trying to decide which to use. the bcm stainless barrel that is 16 inch with a mid length gas system or to go with the 18 inch and rifle lenght gas system. they both cost the same and the rail i want should cover the rifle and mid length gas block

man it seems all the part supply companies are sold out. they are not even taking back orders.