1. AR, as in AR-15, stands for: A Eugene ARnold Stoner B ArmaLite Rifle C Assault Rifle D none of...
1. AR, as in AR-15, stands for:
A Eugene ARnold Stoner
B ArmaLite Rifle
C Assault Rifle
D none of the above
2. Direct Gas Impingement is a system of semi-automatic cycling wherein:
A Gas from the fired shell pushes a piston that strikes the bolt, thereby ejecting the spent case and chambering a fresh round
B Gas from the fired shell is forced through a tube that uses direct pressure to force the bolt back, thereby ejecting the spent case and chambering a fresh round
C Recoil from the fired round depresses a spring within the gas block and sends the bolt back, thereby ejecting the spent case and chambering a fresh round
D None of the above
3. The AR-10 platform, while very similar in concept to the AR-15, has one main difference. What is it?
A It fires the .308 Win. (7.62 NATO) cartridge
B It was made 10 years after the AR-15
C It is a version of the AR-15 made from heavier parts with closer tolerances for better long-range accuracy
D None of the above
4. If an AR-15 fails to fire, the shooter should immediately employ the “Tap, rack, bang” technique of clearing the jam. “Tap, rack, bang” means doing what?
A Tapping the magazine to make sure it’s seated, racking the bolt to clear a jam and chamber a fresh round, then pulling the trigger to shoot again
B Tapping your partner to indicate there’s a malfunction, racking your brain to find the problem, fixing it, then shooting again
C Tapping the magazine sharply in order to re-rack the cartridges inside of it, and banging the charging handle in a forward direction
D None of the above
5. Can you safely shoot a 5.56 NATO round in a .223-chambered AR-15?
A Yes. There is no risk; the cartridges and chambers are exactly the same
B No. Increased pressures can occur due to the .223 chamber’s shorter leade/throat
C Yes, but decreased pressure can occur, causing the bullet to tumble due to the 5.56 round’s longer length
D No. The two rounds and guns are incompatible with each other and will result in catastrophic failure
6. Heavier-for-caliber bullets generally require what type of twist rate?
A Faster twist rate, such as 1:7
B Slower twist rate, such as 1:14
C No change; it’s proven that the standard 1:9 twist rate is best for all .224-caliber projectiles
D It depends on the barrel manufacturer’s specs
7. Approximately how many ft.-lbs. of recoil energy does a standard-velocity, .223 Rem/5.56 NATO cartridge loaded with a 55-grain bullet produce in a typical, 7-pound AR-15 rifle?
8. Rank the order of the muzzle energy of these cartridges, from most powerful to least powerful.
A .30-06, .30-30, AR-15/.223 Rem., 22 WMR
B .30-30, .30-06, .223 Rem., 22 WMR
C .30-06, .30-30, .22 WMR, .223 Rem.
D .30-06, .223 Rem., .30-30, .22 WMR
9. Which of the following rifles is NOT an AR-15-style rifle?
A Keltec RDB
B Rock River LAR 15
C Daniel Defense MK 18
D Yankee Hill Machine 8550 Specter
10. If subsonic, 55-grain loads are fired from a 16-inch rifle barrel, the AR-15’s muzzle energy goes from approximately 1280 ft.lbs. to what?
D There is no change in muzzle energy
11. What was the first branch of the military to officially purchase AR-15-type rifles?
C Air Force
12. In order to convert an AR-15 to shoot the heavier .300 AAC Blackout round, you must do what?
A Replace the barrel, magazine, and bolt with those chambered for .300 Blackout
B Replace the barrel or upper barrel assembly
C Replace the barrel and magazine
D None of the above. AR-15 rifles chambered in .223 Rem./5.56 NATO are not compatible with .300 Blackout
13. Using a silencer on an AR-15 rifle will change your bullet’s point of impact which way?
A To the left and upward
B To the left and downward
D Randomly or perhaps not at all
14. An M4 carbine differs from the military’s M16 rifle, which was adapted from the AR-15, in what way?
A It’s a fully automatic version
B It’s chambered in .7.62 NATO
C It’s shorter and lighter
D It’s the exact same rifle, just coded differently by various military branches
15. The National Shooting Sports Foundation estimates there are how many “Modern Sporting Arms (AR-15-style rifles) in the U.S. today?
A Fewer than 1 million
B 300 million
C 5 million to 9 million
D 25-35 million
A SHORT HISTORY OF THE AR-15 and M16:
– 1-4 correct: You might be getting your facts from Barbara Boxer. You should look elsewhere.
– 5-9 correct: You’re interested in AR-15s, so peruse this website to find out more.
– 10-12 correct: Not too shabby. With a little more study and range time, you could become a master of all things AR.
– 13-14 correct: You’re a cross between Norman Schwarzkopf, a gunsmith, and the Navy SEALS who nailed Bin Laden.
– 15 correct: Congratulations—you’re Eugene Stoner reincarnated!
|1. B||9, A|
|2. B||10. C|
|3. A||11. C|
|4. A||12. B|
|5 B||13. D|
|6 A||14. C|
|7 B||15. C|