Beeman Precision Airguns has been an industry leader in the airgun field for many years. The company produces a variety of air guns in pneumatic, spring piston and CO2-powered varieties. Tuning a Beeman air rifle is the process of dismantling, cleaning and installing precision parts to improve the accuracy and operation of the weapon. A transfer port is a part directly next to the compression chamber on a spring-piston air rifle. This piece directly affects velocity -- and if left dirty or unchecked -- can greatly affect weapon accuracy.
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Things you need
- Mainspring compression tool
- Punch and hammer'
- Padded gun vice
- Plastic jag
- Cleaning patch
- Cleaning solvent
- New match trigger
- New match barrel
Unload the weapon completely. Visually inspect the weapon to ensure that no live ammunition is present.
Place the weapon in a padded gun or jaw vice. Lock the vice down tight.
Disassemble the trigger assembly by punching out the two retention-pins near the trigger guard. Consult your owners manual for detailed instructions; all Beeman air rifles vary slightly with this process,
Unscrew the receiver end-cap, and slowly remove the mainspring using a mainspring- compression tool. This keeps the spring under compression, relaxes it safely and keeps you safe when removing it. Take the barrel off the spring-retention tube.
Visually inspect the transfer port; it is located adjacent to the compression chamber. File down any visible burring or nicks. Clean the transfer port using a plastic-cleaning jag and a small patch.
File down any burring of the trigger mainspring. Discard the trigger, and replace it with a match-style, lightweight trigger. Replace the old barrel with a new, match-style barrel. Lubricate the barrel. Reassemble the weapon.
Tips and warnings
- Never attempt maintenance on a loaded air rifle.
- Never point an air rifle at anything that you do not intend to shoot or kill.
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