Trijicon HD XR Night Sight Set Yellow Front H&K 45C/P30/VP9 – HK610-C-600895. Trijicon HK610-C-600895 Overview With a narrow front sight for an expanded field of view and a more precise sight picture, the Trijicon H&K HD XR Night Sight Set for select H&K handguns is designed for advanced target identification and engagement at increased distances. Its front sight outline is photoluminescent yellow and its three dots are green, illuminated by Trijicon’s tritium phosphor lamps. The narrow front sight enhances the ability to identify targets, expedite engagements, and see location of hits on target at longer distances. The tritium lamps require no batteries and are warranted for 12 years from the date of manufacture. Sapphire jewels cap the lamps to distribute light for better visibility, as well as keep contaminants out of the lamps. The front surface of the rear sight is steeply hooked to assist in emergency one-handed slide operation. Trijicon recommends professional installation i. Gunsmith Compatibility Fits the following H&K models. Narrow front sight for better view of target. Photoluminescent yellow ring on front sight. Green tritium-lamp dots front and rear. Lamps use no batteries & are warranted for 12 years. Rear sight face angled to assist in emergency one-handed slide operation.