Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
7/31/2011 9:50:15 AM EDT
I'm new to piston AR's. I just got a used PWS upper (400rd count) and was going to put it on my Double Star lower. I there anything I should look out for?

Thanx
7/31/2011 10:22:52 AM EDT
[#1]
The forward handguards can get a bit hot.

7/31/2011 10:44:37 AM EDT
[#2]
Quoted:
The forward handguards can get a bit hot.



Thanx for the heads up.....it came with covers and grip
Its a 16" 1-7" chrome lined berrel

Thanx
8/2/2011 5:34:46 AM EDT
[#3]
Quoted:
Quoted:
The forward handguards can get a bit hot.



Thanx for the heads up.....it came with covers and grip
Its a 16" 1-7" chrome lined berrel

Thanx


If it is a PWS upper it should be a 16" 1/8 barrel.

I have a front grip on my MK114 and covers and have no problem with heat.
All barrels get hot even my bolt guns.
I do not put my hand on the barrel and I do not put it on the stove when it is hot.
The pic rail getting hot would cause one to put covers or a grip on it making a simple solution


Wulfmann
8/2/2011 6:23:04 AM EDT
[#4]
Quoted:
Quoted:
Quoted:
The forward handguards can get a bit hot.



Thanx for the heads up.....it came with covers and grip
Its a 16" 1-7" chrome lined berrel

Thanx


If it is a PWS upper it should be a 16" 1/8 barrel.

I have a front grip on my MK114 and covers and have no problem with heat.
All barrels get hot even my bolt guns.
I do not put my hand on the barrel and I do not put it on the stove when it is hot.
The pic rail getting hot would cause one to put covers or a grip on it making a simple solution


Wulfmann



PWS actually did use 1 in 7 twist Chrome lined barrels for a very short time on their DC-10 and 16 inch uppers before switching to a Lothar Walther chrome lined 1 in 8.  Then, when they expanded their uppers line and renamed it the "MK1 series" they ditched that make of barrel in late 2010 for a stainless 1 in 8 that is Isonite treated.  I agree, that the heat issue is minor.  It's like running an AK heavily, the piston tube and barrel will get warm enough to radiate out some heat to the user.
8/2/2011 7:45:27 AM EDT
[#5]
Quoted:


PWS actually did use 1 in 7 twist Chrome lined barrels for a very short time on their DC-10 and 16 inch uppers before switching to a Lothar Walther chrome lined 1 in 8.  Then, when they expanded their uppers line and renamed it the "MK1 series" they ditched that make of barrel in late 2010 for a stainless 1 in 8 that is Isonite treated.  I agree, that the heat issue is minor.  It's like running an AK heavily, the piston tube and barrel will get warm enough to radiate out some heat to the user.


Have you seen any issues with a change in zero when the barrel and rail system get hot?  

8/2/2011 8:18:01 AM EDT
[#6]
Quoted:
Quoted:


PWS actually did use 1 in 7 twist Chrome lined barrels for a very short time on their DC-10 and 16 inch uppers before switching to a Lothar Walther chrome lined 1 in 8.  Then, when they expanded their uppers line and renamed it the "MK1 series" they ditched that make of barrel in late 2010 for a stainless 1 in 8 that is Isonite treated.  I agree, that the heat issue is minor.  It's like running an AK heavily, the piston tube and barrel will get warm enough to radiate out some heat to the user.


Have you seen any issues with a change in zero when the barrel and rail system get hot?  




I have not experienced any change in accuracy or POI at the range shooting from 50m to 350 or in a carbine class from 0 to 100.  I've owned both the 1 in 7 twist DC-16 and my current MK114 with the stainless 1 in 8 twist Isonite barrel.  With a TA31 they both printed approximately 1.3 inch groups at 100yds for me off of a bag rest with 55gr PMC or XM193.
8/2/2011 9:25:58 AM EDT
[#7]
Quoted:

I have not experienced any change in accuracy or POI at the range shooting from 50m to 350 or in a carbine class from 0 to 100.  I've owned both the 1 in 7 twist DC-16 and my current MK114 with the stainless 1 in 8 twist Isonite barrel.  With a TA31 they both printed approximately 1.3 inch groups at 100yds for me off of a bag rest with 55gr PMC or XM193.


Thanks for the info.  I assume Paul Howe has tested the PWS rather extensively before assigning his name to the product.  

8/2/2011 1:16:41 PM EDT
[#8]
I see he has it on the CSAT website which is amazing given that him and many other trainers are very, very hesitant to jump on the piston band wagon.
8/2/2011 3:00:57 PM EDT
[#9]
Quoted:
I see he has it on the CSAT website which is amazing given that him and many other trainers are very, very hesitant to jump on the piston band wagon.


Mr. Howe endorsed the LWRC previously.
8/6/2011 7:56:29 AM EDT
[#10]
Thanx guys...Glad to see alot of pleased owners. So I should be able to just slap it on my lower and go, Right?
8/6/2011 9:45:04 PM EDT
[#11]
Quoted:
So I should be able to just slap it on my lower and go, Right?


Yep.

8/9/2011 9:35:51 AM EDT
[#12]
1 in 7 should handle what grain bullet
8/9/2011 9:43:24 AM EDT
[#13]
Quoted:
1 in 7 should handle what grain bullet


The 1x7 twist will run anything 77-80gr on down.

Posted Via AR15.Com Mobile
AR Sponsor