JWF III
Member
Tension may be the wrong term here.
I am building 2 Colt “clone” 9mm carbine/sbr’s. I’m using Colt brand, pin in, mag well blocks. (Don’t ask why. Short answer is “because”.) I have a Brownells roll pin kit with miscellaneous roll pins ranging from 1/16” to 5/32”. Measuring my factory Colt with a caliper, the holes are 9/64”. And my 5/32” pins measure exactly 5/32”, and 1/8” is exactly 1/8”. So I would assume, if I could find them, 9/64” would be 9/64”.
My question is, how much smaller should the hole be than the roll pin? 1/64” seems like an awful lot, specially putting a steel roll pin in an aluminum reciever and block. But the same size wouldn’t give it enough “tension” to keep it in place.
Any help would be greatly appreciated...
Wyman
I am building 2 Colt “clone” 9mm carbine/sbr’s. I’m using Colt brand, pin in, mag well blocks. (Don’t ask why. Short answer is “because”.) I have a Brownells roll pin kit with miscellaneous roll pins ranging from 1/16” to 5/32”. Measuring my factory Colt with a caliper, the holes are 9/64”. And my 5/32” pins measure exactly 5/32”, and 1/8” is exactly 1/8”. So I would assume, if I could find them, 9/64” would be 9/64”.
My question is, how much smaller should the hole be than the roll pin? 1/64” seems like an awful lot, specially putting a steel roll pin in an aluminum reciever and block. But the same size wouldn’t give it enough “tension” to keep it in place.
Any help would be greatly appreciated...
Wyman