Upgrading Tokyo Marui Saiga 12k Hand Guard

Upgrading Tokyo Marui Saiga 12k Hand Guard Mounstrum 12/20 saiga hand guard on a Tokyo Marui airsoft gun I walk through how to do it and the guide on what’s needed You will need if you buy this kit a M4x18mm countersunk bolt I got the kit online through a 3rd party service shippn to the UK as they don’t sell to uk #airsoft #tokyomarui #saiga12k #tmsaiga12 #saiga12upgrade# #airsoftupgrade #saiga12handguard #monstrum