AR-15 BS Thread

This is an awesome deal on a Colt rifle. It's got the lightweight profile barrel, which in my opinion makes a lot more sense on a semi auto rifle than a government profile or heavy profile barrel. But other than that it's just like the other Colt M4 rifles. It's a great baseline to start with, you can add what ever stock and hand guard or rail you want from here.

http://www.gandrtactical.com/cgi-bin/commerce.cgi?preadd=action&key=6720

 

No problem. My local Walmart has the 6920 rifle. It's the same as the 6720, but it has the M4 government profile barrel instead of the lightweight. It's the exact same size under the hand guard, it's just heavier in front of the front sight post and has the grenade ring cutout for the M203 40mm launcher. Those are usually $1000 or so.

It's a good time to be shopping for a rifle. They are cheap, mags and ammo are readily available too. Get the rifle, but at least 10 mags for it, either USGI or PMag, and get a good sling and a case of ammo and have at it.

I might be getting one of those Colt 6720 rifles soon myself.

 

Here's my LMT Defender M4. I would also recommend them, however they are on the pricey side right now. Just the base rifle with plastic hand guard is running $1200 currently. But they also make good stuff.

You can't go wrong with Colt, BCM, LMT, Daniel Defense, or Knights Armament stuff IMO.

 

Yeah I have long arms and like to run my hand farther out on the gun. I had my local armorer shave down the front sight post and re-coat it and install that 13" Geissele rail. The rail was a good deal from Midway USA, $200 shipped. The sights are Daniel Defense and the light is a 300 lumen Streamlight TLR-1s and it's got a Magpul CTR stock.

It's a good and simple rifle that probably cost me about $1500 all in. It rides in my truck most of the time in a First Speer discreet backpack.

 

If you want to buy one, Daniel Defense, Colt, or some of the smaller companies have been killing it. Hodge defense is one of the better smaller companies to go with. Super innovative and they've been contracted by the military for years, recently they've made their weapons available to civilians. Rainier arms has also be slaughtering the competition in terms of complete rifles because they use very high grade parts. BCM is always good

Stay away from Bushmaster as their quality control went down the drain the last few years same with Rock River.

However the best route would be to build it yourself, you learn how the rifle functions and you can take it apart and put it back together if need be without a gunsmith. You buy the parts YOU want without having to upgrade later and spend more money.

 

I do like the Hodge Mk2 rifle. That thing is sweet. Pricey though.

 

Very but it's worth it. I've spoke to Roy at weapon outfitters about it and he said it's well worth the money. The aluminum lithium receivers and rail are stronger that forged 6061 and dissipate heat so much more rapidly.

 

I recently built an AAC 300 blk that I paired with a palmetto state blemished lower. Good combo and I only have about $450 in the whole setup. There's plenty of options for building yourself, for a first time I'd just but a completed lower if you wanted to buy your own upper. Another thing to look at is what exactly you want out of the AR for me being military I like having all the basics ie dust cover, forward assist, brass deflector. Most of your cheaper end ARs don't have these options and to some it might not matter but to me it did! Just some things to keep in mind

 

If you're going to buy a complete rifle but replace quite a bit of furniture, then feast your eyes on this:


For sale right here, at $649.95:

http://clydearmory.com/colt-le6920-oem2.html

While I'm not crazy about the M4 profiled barrel, I love that gas block. Add a KMR rail, a Gunfighter charging handle, Magpul CTR and trigger guard, and some sights...then Bob's your uncle.

 

I completely forgot Colt came out with those. Yeah, that is a killer deal. Maybe that's what I should buy instead of the 6720. I just don't need another M4 profile rifle.

 

Aero precision upper and lower receivers (BLEMISHED-because cheaper) cmmg lower parts kit. BCM lightweight profile barrel whatever muzzle brake you choose. Magpul miad/K2 grip, k2 is more vertical and relieves wrist stress. Stock kits come with all parts necessary, Magpul kits are available at most places, then choose a rail you like and low profile gas block. Set screw type is lower profile. Then a good BCG and you're pretty much good to go.

Or buy a complete lower and a lightweight upper from BCM. Around $750 for said upper. A good complete lower is about $300-400. Unsure if BCM has complete lowers available. IDR but BCM has deals sometimes where if you buy the complete upper they throw in a BCG free.

 

Also carbine length sucks ¯\_(ツ)_/¯

 

I don't think so. They run reliably on a lot of ammo. Middies are great don't get me wrong, but there's nothing wrong with a carbine system.

I run H2 buffers in my BCM and LMT carbines. They're pretty smooth guns.

 

Quick question (hopefully an easy answer) for those who are much smarter than I. So I've always just bought AR's and now am contemplating building one. I'm pretty mechanically inclined so I'm willing to try. I'd want to keep this first build pretty basic - just to get my feet wet.

Question - are most uppers & lowers, trigger assemblies, etc. interchangeable across various manufacturers? I'm thinking so since building (more like assembling) has become so popular as of late.

Also - any reliable/preferred sources for parts & components?

 

Most things are interchangeable unless it's some special proprietary item like some manufacturers use. I usually order from Bravo Company USA for AR stuff.

And a 5.56 rifle will handle .223 ammo, however a .223 will not handle 5.56 typically. The 5.56 chamber is slightly larger and is built to withstand higher pressures from NATO spec ammo.

 

Then there is the Wylde chamber that is meant to fit both calibers.

 

Yeah but that's more of a gun game rifle or varmint / precision chamber. I think there are two other slightly different chamber specs as well.

 

Pfft. Every one I've ever had (both semi and select-fire) ran like a sewing machine. Not dissing middies - different strokes for different folks and all that.

 

BL: if you have a Colt made after 1994, you have a rifle/carbine that uses standard pin sizes.

Another issue here is over fire control group pins. Prior to 2009, some rifles were equipped with slightly larger pins due to Colt's fear of someone adding their own "fun switch" to their lower. Since 2009, however, all FCG pins are the standard .154 size.

All LE6920's are equipped with the smaller/TDP-spec FCG pins.

 

No argument - I used to own an LWRC piston gun. And pistons shine over DI guns in several areas: short barrel, suppressed, and full auto. Otherwise, it's a coin toss.