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Posted: 11/30/2009 12:43:49 PM EDT
| i have 9mm rra ramped bolt and a rra upper that goes with it. is there a specific mag block i need to be looking for? can i use a standard lower with a standard LPK with this bolt? |
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Quoted:
I am getting the 9mm Spikes system this weekend. Could you tell me what buffer you are using? I was told to get a shorter spring. I am running the Spike's heavy 9mm buffer. I didn't even know you could run a shorter spring and I just use the spring my Spike's lower came with. |
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