The polymer these pads are made of doesn’t shape well after it’s been printed, so you should choose a plate slightly smaller than the stock profile of your rifle. You should also avoid drilling new holes in the carrier plate and only use the existing holes.
If the carrier plate isn’t a perfect match the the rear of your stock (and very often it won’t be) you can consider cutting a thin sheet of aluminium ( 1.5mm / 2mm thick ) to match the profile of the rear of your stock and using that as a spacer between the stock and the BSB carrier plate.
Generic Carrier Plate

The generic carrier plate is designed to fit on the vast majority of stocks, and is especially well suited as a replacement to the rubber pad on standard wooden stocks. It is designed to be fixed to your stock using No.8 Wood screws. There are 4 holes in the plate, but it should be secure enough just using 2 of those holes should you wish. Be careful not to use screws that are too long, in case the screws come through the side of your stock and ideally you should drill a pilot hole before screwing the plate into your stock to reduce the risk of your stock splitting.
The generic plate is suitable for both left and right handed shooters as it can be fitted either way up so that the angular adjustment of the pad is towards the shooters body.
Rounded Generic Carrier plate

The rounded generic carrier plate is sometimes a better fit than the normal generic plate for a standard wooden stock. It is designed to be fixed to your stock using No.8 Wood screws. There are two slots and a single hole in the centre, the slots make it easier to match up the holes with the existing holes in your stock. Be careful not to use screws that are too long, in case the screws come through the side of your stock and ideally you should drill a pilot hole before screwing the plate into your stock to reduce the risk of your stock splitting.
The rounded generic plate is suitable for both left and right handed shooters as it can be fitted either way up so that the angular adjustment of the pad is towards the shooters body.
HFT500 Carrier Plate

The HFT500 carrier plate is specifically designed to match the profile and bolt pattern of both the Air Arms HFT500 and the Air Arms Ultimate Sporter. The profile of the plate may also be suited to other rifles. If the profile of the carrier plate is larger than the rear profile of your stock, you’re better off choosing the Generic plate instead.
You may need to make the bolt holes a little larger if the bolt pattern isn’t a perfect match.
I’ve also found that the HFT 500 plate is a very very close match for the BSA Goldstar SE as well.
The HFT500 carrier plate can only be fitted one way, so you will need to specify if you would like a left handed or right handed version when ordering.
HW100 Carrier Plate

The HW100 carrier plate was specifically designed to match the stock profile of an HW100 KT laminate stock, but I have had reports that it also suits most of the HW100 stock profiles. Check that it matches before ordering though and if it’s slightly too big for your stock, again it’s best to order the smaller generic carrier plate.
The HW100 carrier plate can only be fitted one way, so you will need to specify if you would like a left handed or right handed version when ordering.
Steyr LG100 / LG110 Carrier Plate

The LG110 plate is designed to fit directly to the rear plate of the FT version of the Steyr LG100 / LG110. You should be able to fit it directly using the existing M5 bolts.
The LG110 plate is suitable for both left handed and right handed shooters as it can be fitted either way.
Air Arms EV2 & FTP900
I don’t currently make a carrier plate specifically for the EV2 / FTP900 but I’m often asked how a non-standard pad can be fitted to one. There are two methods that I know of. You can either remove the existing pad/hook from your EV2/FTP900 and simply screw a standard Generic plate straight into the rear of the wooden stock, or if you’d prefer not to ruin your stock with screw holes and retain the ability to adjust the length of pull of your rifle, you may be able to find a local engineer who can make a flat plate with 1 or 2 bars (2 holes for an EV2 Mk1/Mk2) to fit into the holes for the standard bars. If you have a new flat plate made up for the read of your rifle, you should order a generic plate and give the engineer the 1:1 scale drawing of all of the plates so that they can make a plate to perfectly match the profile of the generic plate.
1:1 Scale Drawings of all of the plates
If you aren’t sure whether any of the plates will be a good fit to your stock, download the PDF file and print it at 100% (enter 100% on the printer settings dialog).
Once printed you can cut around the drawings and offer up the cut-outs to your stock to see which one is the best match. Remember, it’s better to have one that’s smaller than your stock profile and use a spacer it is to buy a bigger plate in the hope that it’ll look ok if you file the plate down (it won’t, it’ll look crap)