| 摘要 |
The disclosure comprises… 1. a reciprocating bolt carrier assembly (3) of a gas-operated automatic or semi-automatic gun that does not impact the rear wall (100) of the receiver (1) in its rearmost position,… 2. arrangements on the bolt for extracting and ejecting fired cartridges,… 3. cylinder bolt-barrel locking means with a latch (326,327) axially sliding in a groove of the bolt carrier block (300) and interleaving the locking lugs (322) of the bolt (317),… 4. arrangements for positioning and mounting drum or flat box magazines (4, 4 min ) in an opening (106) of the receiver (1),… 5. a receiver construction with arrangements for mounting the barrel (10),… 6. a manually cocking assembly having a rotary handle (601),… 7. a detachable buttstock (2) having two longitudinally extending rods (210) cooperating with respective tubular bushes (200) on either side of the receiver (1),… 8. a sear buffer construction using a U-shaped spring member (705) with longitudinally extending bowed arms (707) for carrying the sear (700)… 9. a sear actuator combined with a trigger safety,… 10. a particular trigger mechanism,… 11. a folding rear sight with two sight apertures (963, 965) and two positions for different range modes, adjustable with respect to elevation and windage, and,… 12. a bipod with foldable and extensible legs (801, 802) permitting the gun to roll in the Y-plane and to sweep in the X-plane by means of its detachment to the gun. |
