LWRC Piston Disassembly

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Postby arcticwarrior » Thu Mar 11, 2010 5:01 am

StephenPSD,
What did you do to your rifle? Or even better, HOW did you do it? That's a sweet looking rifle.
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Postby matt8760 » Fri May 28, 2010 9:27 am

good stuff, very helpful
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Re: LWRC Piston Disassembly

Postby Mark Miyaguchi » Mon Jun 24, 2013 2:49 am

I tried to remove my piston assembly and was unsuccessful. I tried locking the bolt back, and also completely removing the bolt and charging handle. The operating rod seems tight. Watched your video and it seems so simple. Any ideas would be appreciated. Thanks
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Re: LWRC Piston Disassembly

Postby Swisher » Mon Jun 24, 2013 7:06 pm

Q: is there anything wrong with the rifle?
IF yes then call CS
IF No Shoot it more.. Dont worry about disassebly till a couple thousand rounds. And it is procedure to take out the bolt before you disassemble the piston.
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Re: LWRC Piston Disassembly

Postby STONEYARDER » Mon Jun 24, 2013 9:53 pm

Mark Miyaguchi wrote:I tried to remove my piston assembly and was unsuccessful. I tried locking the bolt back, and also completely removing the bolt and charging handle. The operating rod seems tight. Watched your video and it seems so simple. Any ideas would be appreciated. Thanks


Piston cup springs are real stiff, especially new ones.

Clear your rifle
Remove BCG and CH
Close upper onto lower reinstall rear TP
Take off top rail
Put the stock in your lap, barrel pointed towards the ceiling, top of rifle facing you.
Left hand wraps around rail with your left thumb holding the piston cup in place, this is the key to it, if the piston cup slides back at all it wont work.
While holding the piston cup in place grab the connecting rod with your right hand and pull down HARD, once it clears the piston cup pull it to the right a little bit then up towards the muzzle. Don't be afraid to manhandle it. Now slide the piston cup off and pull the op-rod out.
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Re: LWRC Piston Disassembly

Postby JoeBoy » Mon Aug 04, 2014 10:23 am

Make sure you are pulling straight back on the operating rod when compressing the spring. Sometimes guys want to pull up which will cause the op rod to bind in the receiver bushing.
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Re: LWRC Piston Disassembly

Postby nmscuba » Fri Aug 05, 2016 10:12 am

How do you get the piston spring off the op rod?
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