M 14 arms 18 mount

[R.G.]

Have the 305 polytec 30% of the brass are hanging up .
How is the gi spring and extractor different then the poly
Tec ? Thanks

 

[M14Doctor]

The chinnese ejector and extractor springs are longer than designed.
Standard practice is to strip bolt and trim 3 coild only from ejector spring, 2 coils from extractor spring. Insome cases swapping the extractor itself, along with the spring mod as well. GI or M1A will do.

 

[Satain]

Just make sure not to buy the extractor from 7.62
There springs & detents are great but there extractors are lacking BIG TIME!