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piston
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder wall.
.625 gas journal size, set screw type, mid length piston. Comes with piston bushing for upper if needed. 30 rounds through this- decided to stick with all direct impingement for consistency with all my rifles.
$200
$8 shipping
Brandon
951 442 6918
text only please.
Huldra Arms 5.45.x39 Piston upper complete . Has Adams Arms coated anti-carrier with spring release bolt. I bought the upper with 300 rds on it and put a hundred rds on it . It has some strand markings on it the barrel not sure what from. I am also willing to part this upper out if someone just...
Withdrawn, you suckers lose. I'm going to keep this factory gun. GL in your search.
S&W MP15 PSX (gas piston system) NIB with one 30-round magazine (1 Magpul) . Will ship to your FFL (FFL must accept shipment from a non-FFL) for $50. Not looking for any trades at this time. Please post...
Looking to sell my low round count (20'ish) Superlative Arms piston kit in rifle length with clamp on .750" gas block and mid length with set screw .750".
Looking for $200 OBO.
You can change the op rod length to carbine/mid/pistol easily for $35. Available from Superlative Arms.
***MID LENGTH...
Christensen Arms CA-15 (excellent condition)
- Piston driven AR-15/ Carbon Fiber
- .223 Wylde (.223/556)
- 5 - 30 rd mags
- Christensen zipper case with 5 mag holders/ Velcro pouches with extra compartments
More info here: CA-15 Recon and G2 Rifles
Not long ago bought from a great member on...
Edit: 3/27/20: If buyer purchases my Sig 516 piston upper and my Anderson pistol lower, there will be bonus ammo included in deal, see pistol lower ad here: Anderson Lower With KAK Pistol Brace and KAK Dimpled Tube For Length Of Pull Adjustment $150
Edit: 3/19/20 price dropped to $625
Edit...
I have question on the AK-47 gas piston. With my M14 you keep the gas piston and cylinder dry. Is it the same for AK-47 to keep it dry as well? What about the gas cylinder too?
Just using CLP to cleaning and lubing right now.
Thank you.
Selling the complete upper with all OEM parts: barrel, BCG, charging handle. The upper is the exact same as:
Complete product information page: 16" Carbine Tactical Evo Upper
Condition and package:
Essentially new condition, total 200-300 rounds through it (tested with brass and steel cased)...
***SOLD***
I have a never fired factory-built PWS MK111 Mod 2 piston upper chambered in 223 Wylde. This is their 11.85” barreled Upper.
If you aren’t familiar with PWS and their long stroke piston system, it is very similar in function to an AK piston. The long stroke piston eliminates...
Hi have a lwrc 6.8spc 5 mags piston gun in Bronze all factory stuff have optics Leupold 4power for the right price would like to get $1800 for it if you want photo or check give me and email or photo just ask
Looking for a low profile piston kit carbine length. 0.750" low profile gas block type.
Either adams arms or superlative or any other brands that you guys might know of.
Have a few things to trade or cash.
I have for sale a Custom built Hogan H-308. AR-10 w/ 16" barrel in.308 cal (NATO 7.62). $1,580. I paid $2600.00. Hogan used to build all POF USA's rifles.
This rifle is short stroke, gas piston operated with rotating bolt. Piston driven rifles eliminate carbon fouling on the bolt and bolt...
For sale or trade Adams piston upper with a Rainier Arms upper receiver, Colt 16 in. heavy barrel (I believe it is a SOCOM). Fore end made by Samson says Adams on it. It is un-fired. $800.00 cash or 850.00 trade
Issue:
One of the first world problems I have is shooting the AR suppressed and getting all that gas blowback in my face as well as having the chamber/BCG completley polluted in short fashion.
Question:
Has anyone here (assuming so) found a piston driven kit with adjustable gasblock to solve...
Ruger has dropped all piston AR's and Sig has dropped the 516.
DI rifles outselling piston ones? That would be my guess.
Ruger only lists the AR-556 now. I wonder is a DI .308 is in the works for them.
I recall a while back, notsure if this forum, folks using the gas system from a VZ58 kit and modding it for use in an AR build. Anyone else remember, or might know what site it was on?