X-Caliber AR15 (M4E1 Size) Barrel And Receiver Truing Tool B.A.R.T. 2.0 - Receiver Lapping Tool & Reaction Style Rod & LUBE Handmade in the USA

Handmade in the USA

Adams Arms

precision-manufactured charging handle for the AR15 platform

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X-Caliber AR15 (M4E1 Size) Barrel And Receiver Truing Tool B.A.R.T. 2.0 - Receiver Lapping Tool & Reaction Style Rod & LUBE Handmade in the USABarrel And Receiver Truing Tool B. A. R. T 2. 0 is a two in one tool. Inserted into the front end, the tool laps the face of your AR Uppers, ensuring a perfectly square and centered fit between your Barrel and Upper. With the head of the tool secured in vise, insert the other (splined) end through the rear of the upper until the splines engage the lugs of the barrel. You are now ready to loosen or tighten the barrel nut, muzzle brake, or suppressors