Stern Defense SD 16.1in MOD4 MLOK .40SW Upper Receiver Assembly 15in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD15INMD4ML16.1INBR40SWKK
$614.12
Stern Defense SD 16.1in MOD4 MLOK .40SW Upper Receiver Assembly 15in M-LOK Handguard .578-28 TPI 1-16 Twist Rate Black 015SD15INMD4ML16.1INBR40SWKK. The free float M-LOKhandguard from Stern Defense offers excellent ergonomics while remaining...