Machined from 4140PH Steel and fastened with 1095 Spring Steel, this receiver Mounted Bolt Hold Open for the M249s allows you to lock the bolt to the rear between firing schedules to empty and show clear, diagnose and correct malfunctions, change barrels, or just let the breech breathe. Now you can free up space in your range bag and toss the ugly yellow block.
Finished in Cerakote Armor Black.
Machined from 4140PH Steel and fastened with 1095 Spring Steel, this receiver Mounted Bolt Hold Open for the M249s allows you to lock the bolt to the rear between firing schedules to empty and show clear, diagnose and correct malfunctions, change barrels, or just let the breech breathe. Now you can free up space in your range bag and toss the ugly yellow block.
Finished in Cerakote Armor Black.