The SLG is priced below the PMR at $250.
The marker operates using a spool valve and mechanical solenoid (not a solenoid valve) and a sear. The design is not like a matrix or anything else on the market. There are 3 dynamic o-rings and two parts to the bolt kit: bolt and backcap. The marker is more efficient than any of our other guns but is also a bit louder and has a bit more kick.
The SLG has the Hyper3. No LPR. Wired eyes.
The gripframe is a polymer but is much, much stronger than the PMR gripframe. We learned from our mistakes and I would be very surprised if one ever breaks.
We are planning on making a UL frame for the SLG.