Skip to main content
0
Search products
Search
Mugs
Tees
Hoodies
Search products
Search
Chat
Share
Free Shipping
Menu
Mugs
Tees
Hoodies
Back to urbandictionary.com
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
The M-4 is a version of the M-16 machine gun with a 16" heavy barrel which has a special machined groove which is used inconjunction with the bayonet lug, to allow attachment of other devices. The most commonly attached device is a grenade launcher. This groove is midway between the front sight and the flash-hider on the end of the barrel.
Text fits
Save
Cancel
🤖
Shopping Assistant
Online
Hey! 👋 I'm your shopping assistant. What are you looking for?
Ask about products
AI-generated responses. Verify claims.