This killer H&K416a5 has never seen the field. The previous owner did some minor internal upgrades (nozzle and cylinder) and had the Titan installed. I checked the compression (perfect) and installed the SPEED adjustable trigger. I have several other projects ahead of this one, so I have never gotten around to using it. Lucky you! The Gate Titan includes the USB interface cable. Price includes shipping. Trades considered for M249 or other LMG, or P* Fusion engine