Basic Ops of Small Arms Flashcards
What are the eight steps in the cycles of operation?
- Feeding
- Chambering
- Locking
- Firing
- Unlocking
- Extracting
- Ejecting
- Cocking
What are the three types of feeding mechanism?
Magazine
Clips
Belts
What are the three types of magazines?
Box
Pan
Drum
What are the two types of clips?
En-bloc clip
Stripper clip
What are the two types of links for belt fed weapons?
Split link (SL) Fully Encased (FE)
What are the two types of link belts?
Disintegrating (D)
Non-disintegrating (ND)
What are the five types of cartridges?
Rimmed Semi-Rimmed Rimless Rebated Belted
What are the five types of firing pins?
Free-floating Percussion Striker Fixed Inertia
What are the only three ways a firing pin receives its energy?
A larger mass strikes them.(Free-floating)
A spring provides their energy.(Inertia, Percussion, Striker)
Their on mass provides their energy.(Fixed)
What are the two types of primer?
Boxer - one flash hole. The Boxer has a cupped shaped igniting system having the anvil and flash powder built in.
Berdan - Two flash holes. The Berdan contains only the flash powder, the anvil is part of the cartridge case and has two flash holes. It is non-reloadable
What are the eight locking systems?
Rotating bolt Rising/Lowering bolt Swinging bolt Rising barrel Rotating barrel Rollers Locking flaps Locking block
What are the eight operating systems?
Bolt action Blowback Delayed blowback Recoil Recoil w/ gas assist Gas operation Manual pump Revolving cylinder
What are the three types of gas systems?
Gas direct
Gas blast
Gas tappet
How do the three leaves of the sear spring in the 1911 function?
The left applies constant forward pressure on the sear, the center provides constant upward pressure on the disconnector, the right one provides constant rearward pressure on the grip safety.
