The phrase 50 Round SLND MLB is associated with which feature?

The phrase 50 Round SLND MLB is associated with which feature?

• A. Caliber
• B. Type of feed
• C. Barrel length
• D. Length of firing pin

Answer: (B)

The key idea is how ammunition is supplied to the firearm—the feed system. A label that reads “50 Round” along with a couple of acronyms is describing the magazine or feeding mechanism that delivers rounds into the chamber, rather than the cartridge size, the physical barrel length, or the firing pin’s dimensions. In other words, this phrase signals the type of feed (a magazine/drum setup with a 50-round capacity) more than any other characteristic. Caliber would be about the cartridge size, barrel length would be a measurement of inches, and firing pin length is a very small mechanical spec—none of which are indicated by a 50-round feed designation.

The key idea is how ammunition is supplied to the firearm—the feed system. A label that reads “50 Round” along with a couple of acronyms is describing the magazine or feeding mechanism that delivers rounds into the chamber, rather than the cartridge size, the physical barrel length, or the firing pin’s dimensions. In other words, this phrase signals the type of feed (a magazine/drum setup with a 50-round capacity) more than any other characteristic. Caliber would be about the cartridge size, barrel length would be a measurement of inches, and firing pin length is a very small mechanical spec—none of which are indicated by a 50-round feed designation.