Daisy Avanti 753/853/953 Air Rifle Adjustable Extended Butt Stock

thingiverse

My Daisy Avanti 853 air rifle came with two butt stock extension blocks to increase the length of pull of the stock. However, I didn't like the look of these parts and I needed the ability to adjust the butt stock vertically, so I designed this adjustable extended butt stock. There are two sizes of extensions: 25mm (~1") and 16mm (~5/8"). Using various combinations of the two extension parts, the extension can be between 32mm (~1-1/4") and 50mm (~2"). These parts fit the shape of the stock better than the OEM parts, and I think they look better. In addition, the outer block is adjustable in 0.5" increments to a max of 2" downward to raise the stock closer the shooter's face. The thin piece--I used a contrasting white material--is purely for looks and is not required. Use a drill to enlarge the threaded holes and clearance holes as necessary. If using machine screws, use an 8-32 tap for the threaded holes or M4 if you prefer metric hardware. Otherwise tapping screws of the appropriate sizes could be used. Use the two existing 8-32 screws to attach the butt extension to the stock. If desired, place the thin piece between the stock and the extension. Position the adjustable butt stock piece in the location desired and attach it to the butt stock extension using 8-32 x 1.5" long flat head screws (or equivalent metric screws). Attach the OEM butt stock plate to the adjustable butt stock using two 8-32 x 0.75" long flat head screws (use oval head for better appearance if available). I found stainless steel screws of the correct types at my local Ace Hardware in the US. These parts will also work on the Daisy Avanti 753 (wood stock) and should work on the Daisy 953 (synthetic stock) as well.