[Everyone we want a TM HiPower;]

@EDcase 1) Japanese manufacturers can't make airsoft handguns with metallic pressure bearing parts (slide, barrel, revolver frame and cylinder)

2) If plastic slides bother you that much, metal kits do exist

[Old Tokyo Marui M4A1 AEG (non-EBB) railed handguard fitment]

I actually have a Tokyo Marui KAC style front rail going spare if you’re interested, has been painted lightly. Here it is on a G&G outer barrel set up. 

[Pre-shimmed etc.]

6 hours ago, Lozart said:

There's a few but the question is whether or not you trust them to do that for you. It'll void any sort of warranty the manufacturer has straight off the bat for one.

Often times it’s the retailer that exercises the warranty, no? 

[How much for an untested WE L85A2?]

whereabouts did you see it for sale? what did the seller say about it exactly? what do the pictures tell you?

[DBoys AKS74U]

probably best to get a cyma CM045, they’re pretty light for an AK (around 2.7kg) with a metal receiver and polymer furniture. super5ives have them for £153.