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|  MIL-L-45935A
conditions using cartridge 40mm, XM387E4 (dummy, inert) the maximum
forces shall not exceed 28 pounds. Testing shall be as specified in
4.5.3.2.
3.2.2.2 Barrel stop. Upon opening of barrel assembly to full open
position, the barrel stop shall exert sufficient pressure on the barrel
to allow retention of the barrel in the full open position as the
launcher is held in the vertical position with the muzzle upward. A force
of 4.0 pounds maximum shall be required to move the barrel assembly from
this position. Testing shall be as specified in 4.5.3.2.
*
3.2.2.3 Barrel latch. The barrel latch shall move through its full
range of travel under spring action without binding. the Barrel latch
shall pivet under thumb pressure to release the barrel assembly for
movement to the open position. The barrel latch shall remain unlocked
until the barrel assembly is closed. It shall not be possible to move
the barrel out of the locked battery position manually until the barrel
latch has been depressed. The force required to manually actuate the
barrel latch shall be 1.5 pounds minimum to 8.0 pounds maximum. Testing
shall be as specified in 4.5.3.2.
3.2.2.4 Cartridge retainer. The cartridge retainer clips shall be
capable of deflection through their full range of travel without binding
or permanent deformation. The cartridge retainer shall be capable of
holding a fully inserted 40mm cartridge within the barrel chamber, when
the launcher is held in the vertical position with the muzzle upward and
the barrel opened to the full open position.
3.2.2.5 Cartridge locator. The cartridge locator shall be capable
of movement through its full range of travel without binding and shall
exhibit a force of 8.0 pounds minimum to 12.0 pounds maximum when de-
flected flush plus .020 inches with face of the barrel. The cartridge
locator spring shall deflect through its full range of travel without
binding or permanent deformation. Testing shall be as specified in
4.5.3.2.
3.2.3 Receiver group.
*
3.2.3.1 Extractor. The extractor shall function through its full
range of travel under spring action without binding. Upon locking the
barrel into the battery position with the chambered cartridge, the ex-
tractor shall cam downward upon contact with the cartridge and allow
the barrel with cartridge to be locked in the battery position. The
extractor hook shall engage the cartridge rim and retain the cartridge
within the receiver to allow clearing of the barrel chamber as the
barrel assembly is moved to the open forward position.
3
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