Accessory/Make: Tokyo Marui
Condition: Used
Splits/Swaps/Part Exchange: N/N/N
Price/Payment: £150 posted and paypalled 
Pictures: Attached

****I’ve now bought a new takedown pin retention spring and pin to replace the damaged spring and I’m waiting on a lower receiver wedge arriving from Brownells. Both will be fitted and included for £150.****
 

Fully functioning, but used condition Tokyo Marui M4 MWS GBB lower receiver with a leaking Iron Airsoft Pmag. I bought this second hand and there are a couple of items to note.

1) The previous owner has added a sling plate to the rear of the receiver, but it appears the takedown pin retention spring was damaged during fitting. The end of the spring appears to have been nipped by the sling plate. As a result the takedown pin is a little more loose than it should be. It still locks in place and holds the upper to the lower securely, does not appear to come out while firing and is still retained by the retention pin, but it does not take much force to push it out. Easily fixed with a new spring for around £10.

2) There is gap and wobble between the lower and upper receivers. I’ve tried this lower on each of my MWS and there is wobble with each one. Some more than others. Potentially rectified with a receiver wedge for around £10.

3) The selector switch is quite stiff. Still switches into safe, semi and auto and fires on each mode as it should, but takes a little more effort than it should to select each mode. I’ve not taken it apart to find out why this is the case. 

4) The Iron Airsoft Pmag leaks. Likely needs new O-rings.

5) Previous owner has fitted a large bolt release. Will come with the original bolt release. 

6) Previous owner has fitted a Magpul pistol grip. Don’t know if it’s genuine or replica.

With the above noted, this lower receiver appears to function properly, but feel it’s important to note the above for full transparency. Price includes postage and PayPal fees.