Rock 450b0461 450 bm mid a4 upr half ss upper
Receiver Finish: Black
Type: Complete
Caliber: 450 Bushmaster
Barrel Length: 16"
Barrel Material: Steel
Twist: 1:24"
Barrel Description: Heavy
Barrel Finish: Stainless Steel
Handguards: 13" M-LOK
Handguard Finish: Black
Barrel Length Range: 16" to 16.99"
Receiver Finish: Black
Type: Complete
Caliber: 450 Bushmaster
Barrel Length: 16"
Barrel Material: Steel
Twist: 1:24"
Barrel Description: Heavy
Barrel Finish: Stainless Steel
Handguards: 13" M-LOK
Handguard Finish: Black
Barrel Length Range: 16" to 16.99"
