The New Front Of Center Outsert System is designed for those that want more weight upfront and ease of use of Outserts. The F.O.C.O.S is made of 3 parts. One is a black anodized 7075 T6 aluminum alloy outsert. Two is a Stainless steel Retention post that also acts as a footer inside the shaft. Third is the 3/32 allen head retention screw that allows for the Outserts to either be screwed on or screwed and glued.(Not Tattooed) This system has been tested to over 550 Pounds per square inch of pull and they stay on! If you are looking for maximum penetration, Maximum F.O.C and shot after shot performance then the deadly combination of the Rampage arrows then the F.O.C.O.S is sure to be a hit!