First AR/300build....any tips?

[Mike Bell]

First build about to start....Starting with a DPMS lower and a TP555 barrel in the pistol position. And Im going to get one of his adjustable gas blocks to go with the barrel. Gun will be used for both sub and super sonic but primarely super. Maybe switch to subs when a supresser can be obtained one day...


Any 300/221, whisper, BLK, problems I need to know about before ordering parts? And another question....can yall name a few parts suppliers besides Brownells and Midway?
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So far, my list includes:

lower build kit w/MOE stock and tube from Palmetto State, and a stripped flat top upper also, all for $210.

Upper parts kit w/handle for $36 from DPMS

Bravo Co. Bolt carrier group for 130 and a MidWest Ind. SS12" HANDGAURD FOR 149.95

And the adjustable gas block and tube from TP555 will be arount 80 or so I think.....

Cant think if Im forgetting anything or not.... What do you think? ya's na's what?

[i8asquirrel]

I have had great success on mine with a rifle buffer with the internal wights removed to take the weight down to = a crbine buffer, I think it was around 1100 gr. and my gas port is drilled to .116" the same as the ID of the gas tube. I fire super & subsonic rounds just fine.......Good luck,,,,your gonna love it.

[rv10flyer]

to the club.

I would recommend getting the case gage along with your barrel from tp555/Paladin. This will make reloading easier. Also, you will need a shorter gas tube with the adjustable gas block. I would also recommend getting this from Paladin unless you are familiar with shortening the tube.

[Mike Bell]

change in the program.....just gonna order the upper parts from Bravo to save on shipping. and go head and get a Gunfighter handle while Im at it.


first batch of parts should be here friday or monday.....hopefully Friday

[mstarling]

I had difficulty getting a pistol length gas tube that worked. tp555 finally made me one from a rifle length tube.

The next hurdle is to get ammunition that will fit into the case gauge. A chamber gauge is a necessity! I had to run my brass through a small base .223 die in order to get everything to work.

Watch the overall length ... the max you can use will depend on the shape (ogive) of the projectile. Needs to clear the indents in the side of the magazine without pushing the round too much to the center, or you will have feeding problems.

I have been very pleased with Paladin's work and his service! The chambering is lots of fun to play with!

[Mike Bell]

I guess I need to talk to TP555 about that tube. I was going to have him do the BLK conversion but I dont think theres is a need for it. So I may just go with his gas block and tube.

[HotLead]

If Paladin has the pistol length gas tube, definitely buy it from him; he was out of stock when I purchased my gas block so I had to form my own from a rifle length tube...it is a PITA!.

The case gage is also worth the extra couple of bucks too. I check all my loaded ammo with it and I have never had a malfunction of any kind with that rifle.

Other than that your build sounds good..good luck!