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MR556 A4 1.9MM GAS VENT SCREW. RIFLE AND PISTOL SHIP WITH 1.3MM INSTALLED.

MR556 A4 2.0MM GAS VENT SCREW. RIFLE AND PISTOL SHIP WITH 1.3MM INSTALLED.

Spare 12rd magazine for Mark 23 pistol.

MR762 A4 1.3MM GAS VENT SCREW. COMES INSTALLED ON MR762 A4 RILFES.

Gas block pin for MR556 rifle

This kit includes a complete upper receiver/barrel assembly. This kit is only compatible with a MR762 lower . This closed system virtually eliminates the malfunctions that are common in direct-impingement gas systems, since hot carbon fouling and waste gasses are not propelled into the receiver area to operate the action. This is the same key feature critical to the success of the HK417 used by elite military and law enforcement customers. Upper will ship in HK Soft case. Kit will start shipping late Q4 2025

Pro Ears Golds are still the world’s most advanced electronic ear and hearing protection for shooting, hunting, and industrial applications. Superior technology allows the competitive shooter, hunter, and law enforcement agent to hear every sound, including conversation, even during high volume noise spikes. Pro Ears electronic earmuffs achieve a perfect balance between comfort, noise attenuation, and purity of sound.

Fits the Mark 23. The HK thread protector is a must have accessory when a sound suppressor or muzzle attachment is not in use on your tactical pistol. The thread protector will prevent damages to the threads and crown.