Are we talking stock bucking and nub? If so my stock DE UTR 45 that is the same as the 90* range internally couldn't lift .3
I've swapped all my DE guns to a zci hop unit with maple leaf bucking of some sort and nub and can now lift .3 plus easily
Mag adapters and mp5 mags for my DE UTR45 turned up today.
Also a Daniel defense handguard I got off here turned up. Seems to be a insert in the barrel nut to make it narrower so doesn't fit over my outer barrel., So I'll take it it into work and see if it presses out
Finally got my mag adapters to run the more manageable mp5 mags.
mag wobble is no more than the standard magazines. I'll test them out this weekend for any feeding issues
Put a order request Into patrolbase to order stuff from their site. Takes 4-6 weeks as I think they do a monthly request order to them.
I've just had a few bits turn up today from doing this.
I've just fitted this kit into my specna arms E07.
https://www.ak2m4.co.uk/internal-parts/gearbox-kits/m4-compression-upgrade-kit
Excellent consistently.