Aero Precision M4E1 CallahanCam™ 9" ATLAS S-ONE M-Lok Builder Set
Our June Builder Set features an M4E1 Threaded set with an ATLAS S-ONE Handguard and M4E1 Lower Receiver with a CallahanCam™ Cerakote finish by Republic Rifle.
This package deal includes the finished pieces you need to assemble your own CallahanCam™ M4E1 Rifle, including an M4E1 Threaded Upper Receiver, M4E1 Lower Receiver and a 9" ATLAS S-ONE Handguard of choice all finished in custom CallahanCam™ Cerakote. Stand out at the range with a unique and eye catching build. This is a one time offer for this finish - once they are gone, they are gone!
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