Basic Ops Of Small Arms Flashcards
What are the three feeding mechanisms?
- Magazines
- Belts
- Clips
What are the five types of cartridges?
- Rimmed cartridge
- Semi-rimmed cartridge
- Rimless cartridge
- Belted cartridge
- Rebated cartridge
What are the five varieties of firing pins?
- Free-floating
- Inertia
- Percussion
- Striker
- Fixed
What are the only three ways firing pins receive their energy?
1 a larger mass strikes them (free floating)
2 a spring provides their energy (inertia, percussion, striker)
3 their own mass provides the energy (fixed)
What are the two types of primers?
1 Boxer
2 berdan
What are the eight types of locking systems?
1 rotating bolt 2 rising/lowering bolt 3 swinging bolt 4 rising barrel 5 rotating barrel 6 rollers 7 locking block 8 locking flaps
List the eight operating systems.
1 bolt action 2 blowback 3 delayed blowback 4 recoil 5 recoil with gas assist 6 gas operation 7 Manual pump 8 revolving cylinder
What are the three types of gas systems?
1 gas blast
2 gas tappet
3 gas direct
What are the three types of magazines?
1 box
2 drum
3 pan
What are the two types of links for belt fed weapons?
1 split link SL
2 fully encased link FE
What are the two types of link belts?
1 non-disintegrating
2 disintegrating
What are the two types of clips?
1 En-block clip
2 stripper clip
How do the three leaves of the sear spring in the 1911 function?
The left applies constant forward pressure on the sear; the center applies constant upward pressure on the Disconnector; the right applies constant rearward pressure on the grip safety.
What is the difference between boxer and berdan primers?
Boxer - one flash hole. anvil and flash powder built in
Berdan - two flash holes. Only flash powder built in. Anvil part of the cartridge case with two flash holes. Non-reloadable
What are the eight steps in the cycle of operations?
- Feeding
- Chambering
- Locking
- Firing
- Unlocking
- Extracting
- Ejecting
- Cocking
