new 300 WTF

[ds762]

I have been acquiring parts to build another upper. Finally got it together a couple weeks back and since the forum is back up I figured I'd throw out a little eye candy!

Parts are:
a3 upper
RRA chrome BCG
Troy TRX HG
Pac-Nor bbl
Badger Ordnance lo pro GB
Nikon M223 1-4
Burris PEPR
SAS 30 cal suppressor
F1 SBR recvr
MagPul CTR

[ds762]

I do have a quick question. When I finally got over to my brother's to machine the barrel .. his DINOSAUR CNC mill that he used to drill it had too much run out and instead of having a gas port of .118 I ended up at .125.

Any foreseeable problems with the larger gas port?

[sha-ul]

While I am not an expert on ar- gas systems, I don't think there would be any problems that could not be resolved with an adjustable gas block, or adjustable tube.

[ds762]

thing is most adjustable blocks (tp555 design) don't jive well with handguards (at least in my experiance - LaRue and Troy TRX).

The gun cycles supers suppressed and unsuppressed .. now I just need to get some more projectiles and load up some subs and see how it goes.

[sha-ul]

what about the gas tubes with the allen screw adjuster?

http://www.brownells.com/.aspx/pid=9...LATED-GAS-TUBE

[dick]

I have tried the adjustable gas tube, you may have to relocate the valve that requires another gas tube. In my experience the valve will start to loosen up after a while. I would take a look at JP or PRI for an adjustable low profile gas block. You may need to modify your hand gaurd to access the adjustment screw, hand drill a small hole or open up with a dremmel tool, if real tools are not availible.