Carbon Express Maxima RED 4mm Carbon Hunting Shafts, dz.

Sold by the dozen: 12 unfletched carbon hunting shafts. Carbon Express Maxima RED 4mm shafts combine a micro-diameter, high-modulus carbon shaft with RED ZONE Tri-Spine Technology to manage flex and improve broadhead control. Their slim profile helps reduce wind drift and supports penetration, while 360-degree spine consistency promotes repeatable flight. Features and specifications 100% high-modulus carbon construction; .166-inch inside diameter. Unfletched shafts with Bulldog nock collars and LaunchPad Precision nocks. No vanes or feathers. Includes 50-grain aluminum outserts. Factory chart: maximum straightness ±.002 inch; average straightness ±.001 inch. Weight tolerance: ±1.0 grain. Spine GPI Stock length (in.) Outside diameter (in.) Average spine Outsert size Collar size 300 11.3 32.8 .254 .297 #3 #3 350 10.2 32 .246 .349 #3 #2 400 9.3 32 .240 .399 #2 #2 GPI means shaft weight in grains per inch. Matching factory components 300 spine: #3 50-grain outsert (CX0742); #3 Bulldog collar (CX0762). 350 spine: #3 50-grain outsert (CX0742); #2 Bulldog collar (CX0761). 400 spine: #2 50-grain outsert (CX0741); #2 Bulldog collar (CX0761). All three spines use the 4mm pearl-white LaunchPad Precision nock (CX0750). Component part numbers identify the matching factory replacement 12-packs. Factory reference charts The spine-selection chart is a factory reference covering additional sizes. Only 300, 350, and 400 spine are offered here. Follow the chart's point-weight adjustments and selection guidance. If having Arrows/Shafts cut, measure from the hole in the nock to the end of the Arrow/Shaft without the insert or point.