Altra - 166 Insert and Outsert - 12pk Size:400 This is particularly useful when

This is particularly useful when your target is moving closer or farther away

4mm nocks and front-of-center boosting 8-32 half-outs are included to tighten arrow grouping n the target

Each nock in this package weighs approximately 25 grains

Comes in 6 pk or 72 pk Fletched QTY (1 grey/2 white Altra branded Q2i RAPT-X vanes) or 12 pk Shafts QTY

Heavy duty wheels & lockable zippers

Altra - 166 Insert and Outsert - 12pk Size:400 This is particularly useful whenDescription: The insert secures into the arrow shaft at a depth of 0. 875", while the outsert then threads directly onto the insert and encapsulates the leading end of the arrow at 0. 43" creating unmatched durability. Essential rubber O rings come pre installed on the insert within the A. R. C. O. S., as they aid in locking the outsert in place which reduces vibration and improves concentricity between the outsert to the insert for a more precise