X-Caliber AR15 (M4E1 Size) Barrel And Receiver Truing Tool B.A.R.T. 2.0 - Receiver Lapping Tool & Reaction Style RodBarrel 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

This heavy-duty model is capable of striking a heavier blow than the Starrett 18A and 18AA automatic center punches

Compatible with barrels utilizing a

ULTRA-TOUGH ENGINEERING RESIN HELPS PROTECT GUN FINISHES

The molybdenum disulfide additive is a dry lubricant that remains in place even after the liquid component of the grease has dried or baked off from heat and allows for easier disassembly

Loctite 222MS (Pink/Purple

This excellent spherical pistol propellant utilizes our CFE formula

The Starrett 18C automatic center punch is the gold standard when it comes to prepping the placement of a perfectly executed staked gas key and castle nut

especially during operations in austere environments

• T-Way T-Handle Wrench

align the two pieces

Military specifications require castle nuts to be staked in two locations to ensure the castle nut and buffer tube will not loosen without deliberate action

The ABC/R by Forward Controls addresses the difficulty with accessing the factory bolt catch's lower paddle with an ambidextrous magazine catch on the receiver