The DD MK18 Upper: A CQB Powerhouse
The Daniel Protection (DD) MK18 upper receiver is often a renowned component within the AR-15 platform, recognized for its close-quarters battle (CQB) prowess. Initially designed for USSOCOM (U . s . Particular Functions Command), the MK18 upper has grown to be a sought-following option for equally professional and civilian AR-fifteen fanatics resu