Got to handle an SL-8 yesterday at the range. Didn't get a chance to shoot it though. Seemed clunky looking but handled and shouldered well. The modular concept is well executed but perhaps wear could become a factor as the weapons get older (steel pins wearing on the plastic body during repeated disassembly & reassembly). I can foresee an aftermarket segment building replacement and accessory parts for this weapon the same as the AR series of weapons has. Heavy barrel is free-floated. My friend is getting the twin optical sight but it hasn't come in yet. My main complaint is the trigger. Very mushy trigger. Hard to believe it's an HK trigger. Hopefully it will break-in okay and clean up with break-in. Another minor complaint is the ambidextrious bolt charger handle. It's a good design but when wearing gloves it will be very hard to charge as there is not much room to fit a gloved finger in to push or grasp the charging handle. The best solution would be just to get the weapon with the optical sight handle/rail instead of the Pictanny (sp) style rail that comes standard.