NcSTAR Upper Receiver Block for AR15 Flood Light Construction: Hardened inserts on front

Construction: Hardened inserts on front

they resist bending and flexing even with heavy use

in combination with an impact and chemical resistant engineered polymer housing

Fits belts up to 1 3/4"

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NcSTAR Upper Receiver Block for AR15 Flood Light Construction: Hardened inserts on frontNcSTAR Upper Receiver Block for AR15 VTARUVB Upper receiver block is designed to fits AR15 M4 receivers to help with assembly and general maintenance of AR receivers. The modular AR15 M4 upper receiver block can be used in several ways for many different maintenance tasks. You may use just the lower half of the block by attaching it quickly to the upper receiver with the two provided receiver pins. This allows you to clamp the AR upper receiver to a