Hi,
I recently get a ATAMAN M2 carbine in .22 .Nice gun, but the single stage trigger feeling was horrible : a long spongy pull and suddenly the gun lets off...not predictable at all. So I tried to install a little device to decrease the engagement of the primary sear , making a kind of an "hair trigger".
I put a little piece of steel with a slot in it to move it up or down , the pointed head just below the primary sear. The piece is secured and locked to the breech with a slotted screw ( white arrow on the pic ). A long screw goes through a threaded hole in the trigger to adjust the steel part under the primary sear , pushing it up to increase sensibility.Once the result is reached , this long screw is removed and the slotted screw is locked.
Care must be taken to tune the system,little adjustment at a time, until the primary sear engagement is just enough to cock the gun ; testing the result by giving the gun some good blows to be sure it won't fire.
Being not perfect , this modification makes the gun more accurate to shoot.
I recently get a ATAMAN M2 carbine in .22 .Nice gun, but the single stage trigger feeling was horrible : a long spongy pull and suddenly the gun lets off...not predictable at all. So I tried to install a little device to decrease the engagement of the primary sear , making a kind of an "hair trigger".
I put a little piece of steel with a slot in it to move it up or down , the pointed head just below the primary sear. The piece is secured and locked to the breech with a slotted screw ( white arrow on the pic ). A long screw goes through a threaded hole in the trigger to adjust the steel part under the primary sear , pushing it up to increase sensibility.Once the result is reached , this long screw is removed and the slotted screw is locked.
Care must be taken to tune the system,little adjustment at a time, until the primary sear engagement is just enough to cock the gun ; testing the result by giving the gun some good blows to be sure it
Being not perfect , this modification makes the gun more accurate to shoot.