M4A1

The M4A1 is an American carbine in service since 1994.

Stats:

 * Damage: 18
 * Headshot Multiplier: 1.5
 * RPM: 600
 * Inaccuracy: 0.5
 * Pierce Multiplier: 0.3
 * Base Capacity: 30
 * Cost 4500$ to buy.
 * Sells for 2970$.

Trivia
The M4 was designed in 1982 and finished in 1993.