Graco Recoil Reduction System is designed to be inserted into the draw bolt hole in the stock. It rests against the head of the draw bolt, becoming a solid part of the gun, without carrying the explosive shock from the gun, through the wood, to the recoil control, thereby putting no strain on the thin wood in the pistol grip area of the stock. Since the Inertia Control is positioned in the deep draw bolt hole, the balance fulcrum is moved forward, therefore the stability of the muzzle is unchanged.

We now have several models; all are for specific type guns under different shooting conditions.

The Model R8 "BreakO" Rifle Reducer is a control weighing 8.0 oz., and is 5 in. long, with a diameter of 9/16 in.

The Model 10 "BreakO" Skeet Reducer is a control that weighs 10 oz., 7/8 in. diameter, and the length is 3 in.

Model R8 Graco Mercury Recoil Reduction System	Model 10 Graco Recoil Reduction System
Model M12 Graco Mercury Recoil Reduction System	Model 14 Graco Recoil Reduction System

The Model M12 "BreakO" Magazine Reducer is a control weighing 12 oz., 3/4 in. diameter, and 5 in. long.

The Model 14 "BreakO" Standard Reducer is 4 in. long, weighs 14 oz., and is 7/8 in. diameter.

Since Graco Mercury Recoil Reduction Systems goes into the draw bolt hole in the stock, the installation is for the most part very simple. However, in some cases alterations have to be made in order to make the control contact the head of the draw bolt. Any gunstock that has a seven eights (7/8") draw bolt hole will create no problem, as the dimension of the Inertia Control is a bit less than 7/8".

Below is a list of the most popular trap guns, and the common draw bolt dimensions.

MODEL 12 WINCHESTER: The factory stock will have a straight 7/8" hole, as will all the Winchester guns. They will create no problems.

REMINGTON 870 & 3200: These guns have a large bolt hole. No problems.

PERAZZI: This gun will have a 7/8" bolt hole, but it will be a bit tapered near the head of the draw bolt. The control will stick on the tapered shoulder, and will not go to the bottom. This shoulder must be taken out. To remove, it is suggested that a flat wood bit of 7/8" be used. In order to have the bit open the hole to the head of the bolt, grind the lead off of the bit.

BROWNING BT99 & OVER AND UNDER: These gunstocks will have a large oval or sometimes large square cavity. At the bottom of the cavity is the draw bolt hole, usually ¾" in size. As with Perazzi, use a 7/8" flat bit.

LJUTIC: Some models of the mono gun will have a 7/8" hole, and some will have a ¾". These shotguns have a very deep draw bolt hole, and extreme care is to be taken when opening the ¾" hole to accept the control.

BERETTA: This gun will have the 7/8" draw bolt hole, and will have no problems.

RIFLES: All rifles have no draw bolt hole, so they must be drilled with a 7/8" bit. This hole must be drilled parallel with the bottom of the stock.

K-80 or K-5: This shotgun will have a ¾" draw bolt hole. The Model M12 Graco Reducer System has a ¾" model for this size bolt hole.

To install Inertia Control, we suggest that the large end be wrapped with 1 ½" masking tape, enough for an easy fit. Plastic tape that gets sticky in warm weather may prove to be a problem in the event of change of stocks, or when changing the System from one gun to another.

The same size masking tape should be used on the dowel pin, to keep it snug and without movement. To withdraw the dowel pin, insert a small screw in the end and pull it out with a claw hammer. With the pin out, bump the stock butt with a mallet, and the reverse action of the mercury will remove the control.

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