There's a fellow out in Norway name Terje that makes custom TRG spacers. They've been well received on another website. I've recently ordered a 1.3mm spacer and safetyarm and thought I'd give some impressions.
Spacers:
These spacers differ from the factory Sako TRG spacers in two significant ways. First, the Terje spacers are cut to perfectly fit the contour of the stock, whereas the factory spacers are simply a rectangular block. In terms of looks, Terje's wins hands down. Second, Terje's spacers are designed so that removing and adjusting the cheekrest can be done without a tool. This feature is especially handy when needing to clean the rifle on the field - no more worrying about forgetting your hex keys! This is done by a locking wheel and nut.
Buttpad:
These are very similar to the spacers in that they allow for adjustment without a tool.
Safetyarm:
When I contacted Terje to purchase a spacer, he mentioned that he had another product called the Safetyarm. It basically attaches to the safety and extends out of the trigger guard. I didn't find anything wrong with location of the safety, but since this part didn't cost much, I told him to go ahead and add it to the order. This replaces the plastic cap on the metal safety arm with a resin block that protrudes out of the trigger guard at a 90 degree angle. I find that this product is well thought out as the piece is just large enough that it becomes difficult to put your finger on the trigger while the safety is engaged (although still possible.) There's no way you will mistake if the safety is on or not with this installed. Also, it makes perfect sense that you should be able to manipulate the safety without having your finger in the trigger guard.
In conclusion, the stuff that Terje makes is top notch. I wouldn't hesitate to buy these products again if I ever buy another TRG. On the downside, they are quite expensive for what they are.
The only way I can see someone improving on his design is to have a fully adjustable cheekrest.
Spacers:
These spacers differ from the factory Sako TRG spacers in two significant ways. First, the Terje spacers are cut to perfectly fit the contour of the stock, whereas the factory spacers are simply a rectangular block. In terms of looks, Terje's wins hands down. Second, Terje's spacers are designed so that removing and adjusting the cheekrest can be done without a tool. This feature is especially handy when needing to clean the rifle on the field - no more worrying about forgetting your hex keys! This is done by a locking wheel and nut.
Buttpad:
These are very similar to the spacers in that they allow for adjustment without a tool.
Safetyarm:
When I contacted Terje to purchase a spacer, he mentioned that he had another product called the Safetyarm. It basically attaches to the safety and extends out of the trigger guard. I didn't find anything wrong with location of the safety, but since this part didn't cost much, I told him to go ahead and add it to the order. This replaces the plastic cap on the metal safety arm with a resin block that protrudes out of the trigger guard at a 90 degree angle. I find that this product is well thought out as the piece is just large enough that it becomes difficult to put your finger on the trigger while the safety is engaged (although still possible.) There's no way you will mistake if the safety is on or not with this installed. Also, it makes perfect sense that you should be able to manipulate the safety without having your finger in the trigger guard.
In conclusion, the stuff that Terje makes is top notch. I wouldn't hesitate to buy these products again if I ever buy another TRG. On the downside, they are quite expensive for what they are.
The only way I can see someone improving on his design is to have a fully adjustable cheekrest.
