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APS "Silver Edge" 8mm Ver.2 Airsoft AEG Gearbox (Type: Rear Wired)

ID: 49308 (GB-APS-SE2HR)
APS / HakkotsuSE-2HRSE-2HR49308
4.2 stars, based on 11 reviews
APS Silver Edge 8mm Ver.2 Airsoft AEG Gearbox (Type: Rear Wired)
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APS / Hakkotsu


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.


  • Fully polished "Silver Edge" gearbox increasea overall efficiency by up to 15% from standard gearbox designs
  • Made from high strength Grade 5 aluminum alloy; reinforced in key areas for longevity
  • 8mm stainless steel bearings provide smooth travel for the steel gear set
  • Ported cylinder optimized for carbine length inner barrels (~363mm)
  • Integrated "quick spring release" function for easy spring change
  • "Hybrid" electric blowback design (can be disabled simply by changing the mock bolt)
  • Wired to the rear with a Small Tamiya plug
About the Silver Edge Gearbox:
    The APS Silver Edge gearbox is yet another step forward with improvement of the tried-and-true version 2 gearbox. APS took their Hybrid Electric Blowback gearbox design and improved upon it with some excellent key features. First and foremost they use an improved strength Grade 5 aluminum alloy for the gearbox shell material. They then fully polish the interior of the gearbox to a chrome-like finish, effectively reducing friction on the moving parts that contact the gearbox walls, such as the sides of the piston and the tappet plate. From there they deck the gearbox out with steel gears riding on 8mm stainless steel bearings, low-resistance wiring and trigger switch, and to top it all off a Quick-Change ball bearing spring guide allowing for easy spring changes in the future. All of these improvements net around a 15% increase in overall efficiency, when compared with standard Ver2 gearbox designs. What this means for the user is better battery life, smoother gearbox performance, and improved gearbox longevity.
Compatibility: For APS ambidextrous M4 platforms (May work with other brand TM-spec M4 AEG rifles, but will require modification)
Gearbox Type: Ver 2, Full Metal
Motor: Long Type (Not included)

Manufacturer: APS

About APS / Hakkotsu

APS Limited was established in 2001. APS started by specializing in designing and building Simulation Training Equipment (Real Action Markers & Powder Balls for training simulation). APS - the three words stand for Accuracy - Pneumatics - Shooting. With their knowledge and experience that has been gained from making Real Action Markers and Projectiles, APS launched a new product line - Electronic Blow Back (EBB) products to spur the current Airsoft Market. Since entering the Airsoft industry their line of Airsoft rifles, pistols and accessories have been incredibly popular.

11 Customer Reviews

(Write a review)

by Evan J. on 12/14/2017
"This is a very high quality gearbox shell is similar in quality to shs Cnc Aluminium with quick change spring ebb but that can be modified piston and cylinder are not the best has the 8 mm German caged bearings not the ones shown in photo which is fine with me I think they are a stronger bearing anyway I completely scraped the internals when I got it I did have to machine the inside of the gearbox to fit a different set of gears pretty easy with a drimel and router guide tungsten carbide cutter bit similar to an end mill style the ebb feature is neat I kept the bolt cover but modified it to remove the ebb feature installed it in an aps comp receiver with working bolt catch that is a really nice feature for adjusting hop up I tried a standard upper and bolt catch lever worked on that as well would recommend aps receiver tho great gear box really impressed
by Jake P. on 11/28/2017
"I bought this for my mp5 so I had to replace the trigger and selector. This thing run super smooth and relatively reliably, the piston and piston head are kinda junk (I would save on shipping and order one when you get the gearbox). Also the shell has special holes for the gears so you can't change the gear ratio.

Good shell
Good price
Very smooth (I shimmed mine a little)
Quick change spring
Good stock fps

Piston it plastic except for one tooth
Piston head is pretty cheap
Wiring isn't the best.
by Jeff S. on 10/21/2017
"Had a ton of trouble fitting into my CM16 raider shorty, but with some dremel work, and paired with 6.03 prommy barrel, prommy purple bucking, prommy bridge type nub and prowin hop up flat hopped, that gun turned into a real sleeper. I attribute alot of that to the good compression. Only chrono at 360fps, but that may be due in part to such a short barrel.

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