гвинт упору магазинної коробки; передній гвинт запобіжної скоби
front guard screw stud
front trigger-guard screw
headless guard screw
guard-screw bushing
front-sight clamping screw
front-sight locking screw
front-sight screw
front-sight blade screw
eye-guard; eye guard
front guard
front hand guard
front tang of guard
front-sight guard
breech screw
screw breechblock
cap retaining pin screw
bipod body wing screw
deflector clamp screw
lever damp screw
Venturi lock screw
elevating screw joint pin nut
elevating screw knob
elevating screw mechanism
elevating screw tube
lower elevating screw
rear-sight elevating screw knob
screw elevating mechanism
adjustable screw wrench
automatic cocking lever plunger spring screw
barrel-catch screw
bellcrank stop screw
belt adjuster screw