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Reflex Suppressor for Heckler & Koch G3


Owner's Manual: G3 Reflex Suppressor

Telescopic Reflex Suppressor is a Sound Suppressor, designed especially for use with full-power service 7.62 x 51 mm/ .308 Win. caliber rifle cartridges. Suppressor T8G3 Scout extends total length of G3 by about 73 mm (3"), compared to normal flash hider. M15x1 muzzle thread for flash hider is also the mounting thread of the suppressor. Standard finish of T8G3 Scout is military grade Parkerizing. Also shorter and longer G3 Reflex Suppressor models are available by user's specifications.

g3suppr.jpg (11566 bytes)Please, note: No suppressor is able to eliminate ballistic "crack" of supersonic bullet, but noise of report towards the shooter is usually not louder than snap of .22 rimfire rifle, shooting Hi-Velocity .22 LR cartridges. Using custom-loaded 7.62 x 51 mm subsonic rounds (muzzle velocity ca. 300 m/s or 1000 fps) the noise of the shot is not very much louder than plain hammer click. However, G3 has too slow twist of rifling for heavy bullet subsonic ammo. Subsonic loadings require a 254 mm or 10" twist of rifling to stabilize heavier bullets than 9.7 g or 150 gr in .30 caliber class. Lighter bullets will be stabilized also in 305 mm or 12" twist of G3. Do not shoot with unstable ammo, because they may graze or even damage the baffles of a suppressor!

Photo: G3 suppressor shown as disconnected and mounted. The M15x1 flash hider muzzle thread supports the suppressor from its middle and the grenade launcher quide ring from back.  Internally, the G3 Reflex Suppressor resembles the Valmet M62 Reflex Suppressors - see a cut-away drawing of them!

Mounting: Unscrew the flash hider. Heat it if necessary on electric cooking plate or with gas flame to release the bond of thread locking glue. Clean the muzzle thread and screw the suppressor to the muzzle. Do not use tools or excessive twist force. Overtightening is unnecessary, and it is a way to get excessive shift of shot group.

Shooting with suppressor: Reflex Suppressor is a highly efficient Muzzle Brake, due to abrupt reflection or blowback of muzzle blast inside suppressor jacket. Suppressor shall not increase group diameter of shots in target or object. Additional weight on the barrel shifts the place of the group center, but that displacement is easily corrected by aiming off. Extent of displacement is usually less than one MIL or four Minutes Of Angle (<10 centimeters at 100 meters). More extensive off-aiming or sight adjustment may be needed, when using subsonic cartridges. Trajectory of subsonic bullet is also very curved. Low power subsonic loads are usually unable to produce automatic ejection and feed.

Maintenance: Reflex Suppressor is practically maintenance-free device. Normal fouling of powder and primers cannot take effect on its functioning. Loose solid impurities, like powder kernels and carbon chips, are easy to remove by shaking the suppressor, while keeping it vertically. Compressed air may be used for cleaning, but washing with liquids or solvents is unadvisable. Remove the suppressor, or leave the action of the rifle open after shooting session. This helps water condensed from powder gases to evaporate away. Regular gun oil can be applied for storage.

G3 Reflex Suppressor

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