Tactical Trijicon ACOG TA01 Style 4x32 Cross Sight Rifle Scope + Kill Flash
TROBB Solid Aluminium Dovetail Power Block with Gmac hollow probe and G-mac Bolt
Gmac Brass Power Adjuster Spring And Guide/Drilled Out Standard Valve For more air space
Hammer Mods//Gmac 30% Lighter valve Spring/Gmac Brass Safety Catch//Transfer port drilled out
Full Gmac Trigger kit/Gmac barrel cut to 9inch/Weihrauch Silencer/Custom Home Made Grips/
New TRACER LEDRAY GL2 LAMP 90m Range Beam//HI-Pac
The old style (pre mag) receivers were angled front and back at the loading port to allow room for the fingers when loading pellets. There was also a groove that you could lay the pellet into that the bolt rode in. There's not a lot of "meat" in the new style receiver to allow for much reshaping without going through and making a hole to the inside.
Or just hold the pellet with long tweazers like some guys do when shooting side or under lever springers. lol