(Discontinued) SRC Metal Hop Up Unit for MK36[M07G05 / SI04][03971 / SRCSG3602]
The SRC Metal Hop up is designed for use with the SRC MK36 series AEGs. Some modification may be required to use in other manufacturers AEGs.
Package Includes: Hop unit, rubber bucking, adjustment wheel, barrel spacer
- Manufacturer: SRC
- Color: Grey
- Material: Metal
- Package Includes: One (1) Hop Up Unit
Bought this for my cousin's JG G36c when a friend decided to make his first venture of airsoft tech work my rifle, and ended up ripping the entire hop up system out and broke the one I had installed. All metal makes this a durable product for sure... however it has some MAJOR cons that need to be addressed before you consider this.
Be warned, this hop up takes extreme modifications to *several parts* including one internal gearbox piece that make it so going back to stock condition requires replacement parts of the Barrel Assembly, Mag Well, and Air Nozzle. You have now been informed.... enjoy!
All metal, and we're talking ALL METAL, except the hop up barrel lock, this sucker is 100% metal and is going to be rock solid and give you great consistency at higher FPS as well as stock.
Fits the thick ICS bucking I bought for my JG MP5 that decided it didn't like it... saved me another $6.
Works after some serious and hardcore modification to multiple parts within the gun...... including the hop up itself.
Lots.... but bearable given it was my only option outside of buying a new plastic hop up(i like my guns to be metal and durable... plastic... not cool)
Basically I had to modify three separate parts on my G36c along with the hopup itself before this thing actually decided to work correctly. The first was the gearbox nozzle which had a protrusion on the top that helped the feeding on the stock hop up. This had to be completely removed before the nozzle could go all the way into the hopup and push the BB into the chamber.
Next was the barrel assembly, this irritated me the most, that I had to actually BREAK it in order to make this work because the hop up is too short for JG series G36 rifles. Without breaking it(cutting out the hopup knob stops that you twist the hopup into place with on the outer barrel) the hop up would sit with about 1/8 of an inch to spare reducing my FPS to maybe.... idk 30? It barely shot 30 feet with the maxed hop up. Taking out the hop up knob stops on the barrel assembly let it fall all the way back to the gearbox and solved the compression issue. FPS returned to 330! :D
Third, was the expected mag well issue. Frankly this is fine because I'd rather have the feeding into the hop up be as solid and uniform as possible, this increases consistency at any rate of fire... however I had to modify the hop up itself by dremmeling off a small portion of the inner feeding lip because it would not align right with my mag well(stock G36c mag well)
With several hours of headache and modification to the point of no return completed.... I can now rack out 20rps with my G36c once again full fervor and no reserve without worry of misfeeding! Consistency and range are not much better, but they are noticeably better to a small margin, so i'm happy, so I think I will add a systema hop up bucking and x-style hop up knob and see if that gives me more results. Also, adding a Systema M120 spring kicking it up to about 400-420 fps has given me a nice 30-40 foot range boost and due to the metal hop up my consistency is rock solid.
This unit doesn't fit any gun other than SRC without extreme modification. The other guy had it almost right but you don't have to break your guns barrell unit to get it to seat with the nozzle, just file the tabs off the unit itself. And you don't have to cut the feed tube on the hop-up off, just cut the feed tube on your magwell almost halfway off. Since it's plastic its way easier. Also be careful when cutting your feed tube, use trial and error and only cut off a little at a time. I goofed up and cut too much off so i had to glue an oring on it to keep the pellets from falling into the gun body.
This product is a defect!!!
if you look at the nubs that lock into the front receiver, one of them is actually bigger than the other making this unit sit approx - 1/8 inch to far from the gearbox making the airnozzle not seat right.
dont break anything just sand that one defective nub down to about the same as the other, its metal it can do that
all metal, very nice, defective (i like a challenge), comes with hop bucking and nub,
little lose around barell ( use some Teflon tape) , needs some modification, pain in a**