The DD MK18 Upper: A CQB Powerhouse
The Daniel Defense (DD) MK18 upper receiver is a renowned element while in the AR-fifteen platform, noted for its shut-quarters battle (CQB) prowess. Initially created for USSOCOM (U . s . Distinctive Functions Command), the MK18 upper is becoming a sought-soon after option for both of those Qualified and civilian AR-15 lovers on account of its rel