Availability: In Stock
> 50 Item Items
Expected availability date:
Warning: Last items in stock!
Remade and upgraded CNC gearbox from Retro ARMS with code name "7075 series".
Gearbox version II is completly milled at CNC machining center. Compared to other aluminium gearboxes, our is made out of solib block of aluminium AW EN7075 T651. Source block weighs 1550g and only 143g of material are left. It is not casted like Chinese ones! Our gearbox is tested wit M160 spring without any signs off wear or breaking long term. Gearbox's surface is decoratively anodized.
It's available with slots for 8mm. Bearings are not included. You can choose them from our offer here.
Gearbox is equipped with quick spring change system - QSC. Our CNC spring guide is included.
New features and upgrades:
All standard parts for gearbox version II can be used of course. Both halves fit together with absolute precision including bearing holes,
which are 100% co-axial.
Further small features:
Package includes 1 x gearbox version II, 2 x screw M2.5 x 3, strength screws, CNC spring guide and Retro ARMS sticker.
Gearbox comes with lifetime guarantee against breaking. It doesn't relate to breaking caused by misused parts, e.g. improper cylinder head.
We try to adjust our gearboxes as much as possible to allow use of the widest variety of part brands. However we still recommend to use Retro ARMS spare parts, because they are the most compatible.
We can´t recomended to use our gearboxes in Classic Army Guns due to problems with compatibility.
Gearbox installation requires technical knowledge and skills.
Gearbox review from Brill Armory