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This link was nice , http://www.recoilweb.com/ar15triggerguide/.... I had wrote much more but edit destroyed my hard work :P

CMMG is better ... their enhanced trigger nice ..... the worst trigger in any gun I own is a DPMS in their AR 10 platform , one with a solid trigger bow . Long rusty files rubbing together .... Do NOT have any OLD milt. surplus rifles ( have many types ) that have a trigger that horrible .

Will work on getting a pic of the AR 180 , got a chance to try the new toy { very high wind so didn't shoot much } had to back out the adjustment far more than I would have thought so maybe the 24 in barrel doesn't need it as much as I thought or could be every thing is stiff yet .... after zero at 25 yards could dead center the gong at a 100 yards and a cow pie at 85 .. the crap flies from large cal. ;) Way to windy to try paper at distance .

Looks the same as the one in the video ... with a old Busnell 4X scope on it ... had it a long time , early 80,s traded for it from my brother .. Going to have to learn how to post pics to this sight... see some say no pics didn't happen ... lol

Thanks for the greetings I will add I went with a JP adjustable gas block ... will get to try it out in a few days , weather is crappy right now and need some scope mounting parts ...

Pikers all , 8 lb cans and jugs and many singles , curse of loading many cal. ... being a farm/ranch I am under NO jurisdiction for zoning laws , I know sit a local board .. and what the Ins. Co. doesn't know ..... A lot of Win 748... for 223 and 308

Why I never send in a small order ... wait or go in with a buddy to make shipping cost small in comparison to the total order , even a flat rate $7.00 a order is 10% or more till ya get past $70.00 ....

I have that gun , made in England and the scope mount that goes with it and ya it does stay zeroed when remove and reattached ... takes 2 or 3 shots to settle in :) And NO it is NOT for sale ..

That one should be served with a side of pork ..... the truth hurts for some .. He makes a good point ....

I should add the DPMS hand guard clears the JP gas block , makes life easier to instal gas tube and modifying the hand guard , being used the sling swivel stud ended up in the 11:30 spot . .... Murphy at work .

Thanks guys , used a chain saw file to take some material off the top { outside } of the hole and that did the trick put the gas tube in a adjustable JP gas block I should now have a upper that works :) I had thought of using a drill bit too ... have number , letter and standard bit sets but the material at the bottom of the hole over the upper threads is very thin , so a little more time with a file and no time spent trying to clean up threads ... A lot of good information on this sight .

On the subject of blocking the mag to make it legal to hunt with , I used a piece of wood that fit lose inside the spring { think shotgun plug } of a M1A/M14 mag . Sanded it smooth worked good . Should add the edges were sanded off a bit so as not to catch on the spring .

It wiil go through the four prongs ... and even through with the barrel nut in place just not when the the barrel nut is tight ...As long as the nut has a little wiggle to it it goes tight and no wiggle a no go . More than likely would have had no problem with a standard barrel nut or shorter length on the DPMS nut it would probably go ... I do think I will be filling or drilling that 1 hole to a bigger diameter.

Yikes & OMG .... buy 1 of each or by a gun for the same price ..? Think I would rathe by gun parts or ammo first ... but if I win the lottery I would ... With 308 do you really need that much ?

I have a problem I have never run into in almost a dozen ar 15 builds . The hand guard ( barrel nut ) is for a DPMS free float ... the one that you can't clock . Cannot get the gas tube to go into the reciever when the barrel nut is tight . A slightly used 24 in DPMS 24 bull barrel with the factory handguard ... so I know it worked one time . I am matting it with a Aero upper , gas tube fits the hole in the upper and slides in through the nut into reciever when lose but as soon as the nut is tightened a no go .... And yes I have tried a little both ways from being perfectly lined up { a little too tight - to lose } I am trying this with the gas tube not attached to the gas block .... and I have a drill blank I use for a gauge that fits , but not the %$#@ gastube . By eye ball when things look perfect left - right it seems the nut hole sits a tiny bit lower than the hole in the reciever . Or to put in another way , it looks like the radius from the bore centerline for the nut is slightly smaller than the radius for the upper reciever gastube hole ... A little file work on the nut should solve this I think , but I thought o run it past some wisdom here before I start carving . I did look around and didn't see my specific problem .. oh for a mil-spec AR 10... lol

Thanks for the information I will get the one I want then , why Midway , Brownells .. web sights show only a limited number of gas blocks for AR 10 type rifles is dumb .. if barrel dia, is the main determining factor .... Finding much useful info here :) TY

I will admit to a SKS , a MM AK and a Mosin Nagant in short {WW II } and long pre WW II versions and the best Torkarov SVG 40 any one have gas adjusting tool for the SVG 40 ??? ..lol

Port hole is standard for whatever DPMS has on a 24 in barrel , the distance from the shelf is .3 in same as a military pencil barrel I haven't put together yet . the barrel needs a .936 size block . One of the from Brownells said I should be able to use a AR 15 block . The only fly in the pie I can see would be the dia. of the gas tube or location of the roll pin if different than AR 15 TY for the welcome .

Why the AR 10 platform ? because it is the big sister to AR15 Barbie Doll , Playing with a M1 A is very expensive and limited ... not a lot you can do or afford in HK or FAL . Biggest reason if you want something different you don't have to by a complete gun .. just another upper Or lower ( but who does that for long ) and you have a different gun ... the other platforms the best you can do is change the stock or sighting equipment . And having almost maxed out on AR 15s , I figured it was time to try my hand at putting together a upper for A 243 Dpms I already have a 24 in barrel and hand guard at a good price crossed my path . have a 16in AR-10b in 308 already . Big cal. are more fun to shoot if they are not beating you to death. even if the are more expensive to shoot. Speaking of being beat the guy who designed the collapsing stock for the HK was a SM freak .... only thing worse is a crescent butt plate for a 45-70 lever gun . I should add I have this disease , I like want most anything that goes ... bang ... If I can't shoot it don't care how pretty or collectible it is .

Congrats on find a new money pit .. oh I mean hobby :)

A little about myself . I farm & Ranch and have been shooting since my Dad would let me . Put together my first AR 15 long before it was cool ... 30 + years ago ... do to lack of funds .. now more until the last year or so { then I have gone nuts } Have a number of semi auto 308 platforms including AR-10B and a DPMS in 243 ... but have never put one together was cheaper to by than build. Recently a bargain 24 in. 308 barrel and handguard { DPMS } fell in my lap. Think I will use a Aero upper , and have bolt from Surplus Ammo picked out ... but no one has the gas block I want :( A adjustable gas with a top rail , in .936 size ... so my question is can a AR 15 block be used ?? I measured and the gas port to shelf distance is the same as for a spare AR 15 barrel and the 308 DPMS barrel . So why would it not work ? gas tube different dia. ? Any advice on the matter would be nice ; PS I have looked around , but to read every post ... I want to build it soon... not next year .