Gas blocks for ar15,3 position, pt2

[tp555]

Redesigned the gas blocks.Now closed position is totally closed.Other positions are lo and high pressure.Requires cutting about 15/16" off the back of the gas tube.New is a on-off block with the button.This was requested by law and military.They want a simple open or closed solution.I call this block the milspec.
Shown are stainless steel and the very first prototypes.

[THE DOCTOR]

I received them in a timely manner good fit and finish excellent price.

I had to modify one a bit for my own special purpose situation but for a normal carbine length tube it would not have had to be done. (I ordered 2 and the carbine install went without a hitch) The mod i made was to bend and shorten the pin that is used to select the gas port so that it would clear the free float tube with this mod i also had to mill a slot in my free float tube. I am a machinist so no big deal.

I am very happy with the gas block especially for the price especially as this is a niche part.

Thanks for building a quality part at a great price

DOC

[pug]

tp555 I got the 3 pos gas block and have to say nice job on the fitting of the valve. I was concerned about how much leakage there would be but seems there is very little and off is definitely off. I have to decide which of two barrels I am going to use it on. Thanks again.

pug

[tp555]

Thanks.I used a reamer for the cut.The SS blocks had .001" more clearance then the carbon steel ones. I made 5 blocks in this batch.

[Oldmanpaintball]

I dont know if this is the place to post this but. This is a perfect piece. When he says .750....he means .750 not .751 but .750. I had to turn .005 off my barrel to make it work, I assumed these would fit like half of the other AR parts out there....sloppy. I was wrong. Great machining, fast service perfect product. I have been waiting for something better than the JP block and this is it. I can shoot my 220's sub, flip the knob and shoot my 125's supersonic and still retain the 1/2 inch groups at 100 yrds!!


Matt in Moscow


(might half to order a spare knob to play with)

[jrainw]

I would like one of these to fit a Noveske 10.5, the style that you use a wrench through the hand guard to adjust it. I bet Noveske is shipping alot of these barrels right now so it would be worth making a run to fit them!

[One Shot]

tp
I'm having a guy build a upper for me without a gass block. If I got one of yours, does this mean I could switch back and forth from single shot to semiauto ? ( I'm new to this )

Thanks One shot

[tp555]

Yes.The MILSPEC gas block is on or off.

[Uhlan]

TP, is the ss milspec available and how much is it? Also the 3 position ss with the handle. Was planning on putting it on a PacNor 10.5", ss, 1/6.5", 3 land bbl. Any advantages or disadvantages to pistol or carbine length gas tubes w/ either?
Thanx.

[tp555]

I make them.It is $60 includes shipping for either.Gas blocks don't have anything to do with their location,pistol or carbine.They control gas flow or pressure level.The 3 position does high,low or off.

[One Shot]

I'd like one.

[Coyote]

Incredible work man, are these still available? I actually found this forum due to an arfcom search looking to do something like this..... this is perfect.

[tp555]

Yes I make them.PM me for details.

[Coyote]

by any chance is the 3 position one adjustable for "low" gas?

[tp555]

The ports on this are: wide open 1/8", restriction about .082" and closed.regards.

[Artful]

Is there anyway to make a changeable to experiment with tuning?
(open, closed and adjustable)

[Quarterbore]

Yes I make them.PM me for details.

You are welcomed to post details here. I would prefer that you post in the classifieds and if one sells there is a link to list an identical. There is no cost to buy or sell in the classifieds!

http://www.quarterbore.net/forums/vbclassified.php

[FontanaHorseman]

I am interested in these. Do you make them in .625 as well as .750?
Also what is the availability at this time?
Thanks, FH

[tp555]

Yes it can be made with a .625" bore.PM me.

[redtazdog]

I make them.It is $60 includes shipping for either.Gas blocks don't have anything to do with their location,pistol or carbine.They control gas flow or pressure level.The 3 position does high,low or off.
Will your 3 position work with 223 AR like a Noveske switchblock ?
I have a Noveke with the switchblock and it works well for taming
down the strong blowback through the action when using a can
and was hoping your block would work the same way on another
AR.

[tp555]

My gas blocks work on any ar that uses gas system.Also on ar10's.Haven't seen the Noveski system.Three position or two position blocks are available.What do you need?

[redtazdog]

My gas blocks work on any ar that uses gas system.Also on ar10's.Haven't seen the Noveski system.Three position or two position blocks are available.What do you need?
.
A 3 position .750 ID stainless please :wink:

[smcharchan]

I sent you a PM Tp555. Thanks!

[rockman96]

Redesigned the gas blocks.Now closed position is totally closed.Other positions are lo and high pressure.Requires cutting about 15/16" off the back of the gas tube.New is a on-off block with the button.This was requested by law and military.They want a simple open or closed solution.I call this block the milspec.
Shown are stainless steel and the very first prototypes.

Are these still available? PM sent.

[subhunter]

cant tell you how much your gas block helps on the AR 300 platform. Running a 10.5 300/221 barrel and 3 pos tp555 block, 1.25 gas port, semi auto BC, old school light weight carbine buffer (plastic looking one), loosest car spring I could find (get an old one you have put a lot of rounds through) , and a tuned jewell trigger makes for one excellent sub or supersonic setup. One thing I learned using the low pressure setting is that the weapon will not cycle without the assistance of my suppressor with 950fps 220smk's. which I got to cycle the bolt all the way down to 7.2g of acc#9, OUTSTANDING!!!! Without your gas block you would be hard pressed to formulate a setup which gives both sub and supersonic cycling without a major part change on the rifle. Thanks again tp555 and for you people that are having problems, you need to give them a shot. Also the completely closed setting is awesome for some truly quiet shooting!!!
Thanks again TP555