Quite possible. The KCT used diemaco C8 with normal plastic handrails and they were indeed completely green. You could see them being used in the ECO for quite some time, while they were already phased out by the HK416 for active operators. Not sure if an early Diemaco belonging to Maj Kroon is or was on display. I believe a green diemaco is on display elsewhere in the museum. So perhaps you mixed things up.Morning gang!
Back in 2015 I visited the National Military Museum where a green C8 with plastic handguards (not RAS) with a weird light that folded round the front sight post was on display. IIRC it belonged to Marco Kroon. Yet an image is nowhere to be found, only of Kroonś later C8 with KAC rails and surefire light that is attached to the FSP... Im slowly beginning to wonder if my mind made all it up... anyone got any info?