Kinetic Research Group, llcwww.KRG-OPS.com

AICS Magazine Conversion Kit for the TRG-22

Thank you for purchasing this exciting product from KRG. We hope that it provides years of trouble free performance, and enhances your shooting experience. Careful consideration was given to design and material/�nish selection. We are con�dent that the kit will be a quality product and a valuable addition to your ri�e.

Installation Instructions:(Note: A more fully illustrated version of these instructions, along with a video, will be posted on the website)

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Safety Warning: Before you attempt any installation, make sure your ri�e is unloaded. Also, before starting, remove the bolt and magazine from the ri�e.

Contents of Kit:-Chassis (anodized aluminum) with bedded recoil lug (hardened stainless steel)-Magazine catch (Isonited™ steel)-Catch Extender (anodized aluminum)-Extra strength magazine catch spring (smaller in diameter than factory spring but still stronger)-One stainless steel and one black screw (user choice) to join Catch Extender to Magazine Catch (if kit contains only one screw, it is a blackened stainless steel screw)

Part I: Remove TRG action from existing chassis/stock Step 1: Loosen the two screws that hold the buttstock onto the chassis. These are socket cap screws which require a 5mm hex wrench (Allen wrench). One is located at the very rear of the chassis and is accessed from the top; the other is located behind the trigger guard and is accessed from the bottom. When the two screws are loosened, the stock slides backward out of the chassis. Now completely remove the two screws and the steel buttstock retaining piece. Refer to your TRG manual if you have any questions.

Step 2: Remove the forend from the chassis. This is done by loosening or removing the two �at head socket screws found on the bottom of the forend, inside the rail channel. These require a 4mm hex wrench.

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Step 3: Remove the trigger pack from the action. This is done by loosening the socket cap screw (5mm hex wrench) that is accessed from the round hole in the bottom of the trigger guard. Note the safety must be engaged to access the screw. The screw is captured so don’t worry about losing it. With the screw fully loosened, the trigger pack drops free from the action.

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Step 4: Remove the action from the chassis. To do this, remove the two action screws. These are socket cap screws, requiring a 5mm hex wrench, and are accessed from the bottom of the chassis. There should be a washer with each one. At this point, you can separate the action from the chassis.

Step 5: There is an aluminum block mounted in the chassis that sets the magazine well tightness. Loosen the set screw in the block and slide it out of the chassis. It requires a 3mm hex wrench.

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Step 6: Should you wish to use the Sako bipod and/or the front side mounted sling loop with the new KRG kit, you must remove the steel insert and aluminum sling loop mount at the front of the Sako chassis. This is done by using a screwdriver of the proper size to loosen the two �at head screws that hold these parts onto the chassis. Sako puts a thread locking compound on some of these, so these may be di�cult to remove. It may help to heat the screws up, or possibly use an impact driver.

Part II: Install your TRG-22 action into the KRG chassis Step 7: Mount the steel insert for the bipod, and aluminum sling loop mount if applicable, as a reverse of Step 6 above.

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Step 9: Set the action in the KRG chassis and thread in the action screws. Before you tighten the screws, make sure the action is seated properly. This involves pulling the action toward the rear to make sure the action seats against the recoil lug. Next, rotate the action about the axis of the bore, left to right, once you �nd the limits of its rotation, turn it to the middle. Now tighten the action screws using the torque settings from your TRG manual, or to 65in/lbs. It helps if you set the action upside down on a table and then lower the chassis on the action.

Step 8: Insert the magazine spacer block in the KRG chassis and lock it down near the front of the magazine well. The chamfered edge goes toward the magazine to aid in magazine insertion.

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Step 11: Before you can install the trigger pack, you must switch the stock magazine catch for the KRG magazine catch. To do this, use a 1/16 punch or similar tool to push the pivot pin for the magazine catch out of the trigger pack housing. You do not need to push it all the way out, just far enough to release the factory magazine catch. Remove the factory magazine catch and spring and put the KRG parts in their place. We recommend that you use the OEM Sako magazine catch spring, switching to the KRG spring for a sti�er feel or if you have problems with the AICS magazines falling out when �ring. (Adding a little bit of grease (not oil) to one end of the spring will help it stay seated in the mag catch while you are re-assembling). Reinsert the pivot pin. The trigger pack housing is made of Delrin/plastic and will hold onto the pivot pin well. However, you can re-stake the housing with a �at head screwdriver or similar tool for added security. Now install the trigger pack onto the action.

Step 10: Re-install the buttstock retaining device. This is the rectangular piece of steel that holds the buttstock on. One socket cap screw goes through this part and into the action; the other screw goes through the chassis from the top and screws into the steel piece. (Note that the counterbore in the retaining device faces AWAY from the action.) These are the screws you loosened in Step 1.

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Step 13: Adjust the magazine well tension. Insert an AICS magazine into the ri�e. You may notice the bottom of the magazine cant forward slightly. Or you may notice that the magazine is di�cult to insert or will not drop free. You can tune the position of the magazine spacer block to get the optimum magazine well con�guration. You can also adjust the position of the forend to suit your preferences. Generally we have seen that a tight magazine well leads to more force required to strip a round out of the magazine, but that it is more reliable in terms of feeding. However, some magazines we have tested prefer to be run with a loose magazine well. If your setup is too loose, you may have the magazine drop free upon �ring.

Step 12: Re-Install the buttstock. Do not fully tighten the screws that retain the buttstock because you may want to adjust the position slightly.

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Step 14: Re-Install the forend. Slide the forend into position, along with its retaining blocks, and tighten the �at head socket screws after �nding suitable position for forend.

Step 15: Tighten the buttstock retaining screws.

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At this point you are ready to re-insert the bolt and go shooting. Be sure to check your zero as it may have shifted slightly.

Some things to note about using AICS magazines in a TRG-22:

-Due to the shape of the TRG forend, it is not possible to use 5 round AICS magazines unless you move the forend drastically forward

-Since these two systems were never designed to work together, you may notice an increase in di�culty feeding the �rst couple rounds out of an AICS magazine. There are ways to mitigate this increased di�culty, see our Technical Bulletin titled “1. Getting the best performance out of your AICS conversion kit.” It is included in the packaging with the kit, and the latest version will be posted on the website (www.KRG-OPS.com)

-Due to the nature of production, in both the magazine and the conversion kit itself, magazine �t and performance may vary. You may need to tweak the feed lips on certain mags if you notice poor performance, or the bolt dragging on the feed lips. See the above Technical Bulletin for some helpful tips.