Airsoft Canada - View Single Post - G&G m4 blowback: lower was cracked so brought a echo1 lower and doesn't fit

Crunchmeister · June 16th, 2009, 14:37

Echo 1 is based on the TM 2-piece hopup, where half of the hopup unit is attached to the lower receiver. It's not compatible.

There are ways you can mod in the receiver, including cutting that part out, but then you introduce a lot of instability in the lower receiver because that part of the lower hopup essentially braces the receiver. So it can be done, but I wouldn't reccommend it unless you like having a front end that you can wobble around like a wet noodle.

I would recommend just getting a fully metal body, or getting the proper 2 piece hopup.

June 16th, 2009, 14:37	#4
Crunchmeister Trader rating Join Date: Nov 2007 Location: In your bedroom going though your underwear drawer	Echo 1 is based on the TM 2-piece hopup, where half of the hopup unit is attached to the lower receiver. It's not compatible. There are ways you can mod in the receiver, including cutting that part out, but then you introduce a lot of instability in the lower receiver because that part of the lower hopup essentially braces the receiver. So it can be done, but I wouldn't reccommend it unless you like having a front end that you can wobble around like a wet noodle. I would recommend just getting a fully metal body, or getting the proper 2 piece hopup. __________________