This AK came to me in a bulk buy, it’s a Specna Arms ( believe J series ) it’s been shortened at the front with the handguard cut but glued back on and the barrel cut and the suppressor/foregrip are cable tied on, it’s all secure and I’ve been through it and it’s shooting 330fps on 0.2g. I’ve programmed it to shoot single and 3 round bursts all ok. The Perun MOSFET lets you set things like burst fire/pre-cocking/trigger delay etc all by trigger pulls, the how to is on YouTube but very simple. I think it’s just been done as a cqb home build. 

Love it …. or hate it 😃 it’s a great base for a build or run as it is. Comes with 1 hi-cap specna arms mag. Selling as a project RIF as not my work but from my tests it’s as stated above. I do have 3 other mid caps I can sell also if needed. 
 

Postage is £10 parcelforce or pickup Rayleigh, buyer to cover PayPal fees please, I have a video showing semi/burst fire to potential new owner. Thanks