Hard Hitting For bowhunters looking for a durable, hard-hitting, small diameter shaft that still provides unmatched straightness retention, the Kinetic family of arrows meets the challenge. If you’re hunting larger game or striving to increase your accuracy in wind and inclement weather, the Kinetic shafts are engineered to deliver maximum kinetic energy. Sold in one dozen quantities Specs Straightness ± .006" Weight tolerance ± 2 gr Components included Accu-Tough Nock 11.6 gr Accu-Tough Insert 24.8 gr Grains per inch 500 - 7.6 gpi 400 - 9.5 gpi 340 - 9.9 gpi 300 - 10.4 gpi 200 - 11.6 gpi All of our Custom Built Arrows are hand fletched, using a single Bitzenburger Jig. Our process provides the very best in quality fletching, as well as the best possible matched set of arrows. Custom Arrows are typically built and shipped within 5-6 days of ordering. Arrow Length : In order to insure your arrows are completed to precision quality, please measure your arrow from the bottom of the nock (where string contact is made) to the end of the shaft, not including the insert. Mountain Archery is offering a Priority Build option on all Custom Built Arrows. For an additional $20.00, your arrows will be built and shipped the next business day. (Standard shipping rates still apply) If for some reason your arrows can not be shipped, the $20 fee will be dropped and you will be notified of the delay.