LWRC Piston Rifles

ACE has a post up on the piston-driven assault rifles built by LWRC, formerly known as Leitner-Wise.

Murdoc had a chance to check out the lineup and take some shots at the range back in January.

Also, it’s worth noting that LWRC seems to be very serious about producing rifles in 6.8 SPC.


  1. I had a look. They are being a bit disingenuous in calling direct impingement ‘traditional’; sure, it’s used in the Armalite, but then again it wasn’t used in the British SLR and isn’t used in the AK-47. Also, they leave out the particular gains that you get from the trade-off in direct impingement, like lighter weight and ease of dismantling (the IRA used that to great effect, choreographing street work so that a spotter fingered the target, the assassin picked up the weapon from a carrier, used it, broke it down as he moved, and dropped the components into something another carrier had waiting like a pram – a bit like the Renaissance assassin’s crossbow that was collapsible after shooting). To my mind, the considerations that went into the FAMAS made a lot of sense, using delayed blowback for greater field reliability and designing it so that the only maintenance tool you need is a round. That has the drawback of greater weight than is now customary, but I think that is outweighed by the ability to fire when nearly foul. Also, it is easy to retrofit for different calibres – up to what the soldier and/or the delay lock can take in the way of recoil, that is. I have been wondering a little along these lines, and I came up with an approach that might be useful. Start with the Owen submachine gun/machine pistol, and adapt it to use larger calibres by using Pedersen’s Remington 51 hestitation lock delay system. Make that workable for the larger calibres by making the hesitation parts it uses wider since the piece doesn’t need to be slim line, and make them out of metal fatigue resistant modern materials like phosphor bronze too. Make the piece a bullpup arrangement with a Uzi – or Remington 51 – style safety squeeze grip, and give it a forward handle with an anchoring foot like the early Hagbuts so that the recoil doesn’t always have to go through the butt. With the magazine relatively further back, that can still be mounted on top without obstructing access to the sight, so that needn’t be offset any more. With the right development and testing, all that should come out just as useful in foul conditions – no taking a toothbrush with you to clean the piece in the field, or a load of spare piston rods in case they buckle, problems each side had in Vietnam. (You can find a lot about the FAMAS, the Owen and the Remington 51 at wikipedia, if you’re interested.)

  2. Sounds like everyone is slapping together a piston version of the M-16. I’m not impressed, the AR-18 did that in 1963. How about some good old-fashion American innovation? I don’t know how good they are but Kel-Tec is trying with the RFB Carbine / Rifles. I’m sure they could produce them in a smaller caliber if our Army ever gets serious about testing new rifles. Check out the RFB video: http://www.kel-tec-cnc.com/download.html