I put together a complete RRA upper with a C product poly magblock and im having feed issues. The bullet is getting hung on the feed ramp. Their is no adjustment on the block. The mag is .0625 below the ramp when installed in the magwell. I know this was a cheap magblock. What is the best way to go. I looked for a better magblock and a possible dedicated lower this weekend at the gun show with no luck. Any advise from someone that has one that functions properly would be helpful. Thanks......
Replace the block with a Hahn block, modify the current mag blocks feed ramp or buy a dedicated 9mm lower.
Try Spikes Tactical. They have a very high quality adjustable mag block. Get on the site and it will describe it very well. I also use a Spikes Tactical 9mm bolt in my 9mm AR. It is ramped so that using a regular AR-15 lower (not dedicated 9mm lower) is possible. The best part about this set up is that you can adjust the mag block for many diffrent types of magazines. Find one that works and then get a ton of them. I hope this helped a little. CHEERS
+1 on the Hahn block. That's the one place you don't want to skimp. I love my Hahn.
I have seen a couple of the C products blocks. Most of them look like the are warped. Why buy a polymer block when there are several companies that make metal ones?
I have never had a problem with the top loading hahn block I have.
I have never had a problem with the top loading hahn block I have.
I know I got what I paid for. I'm new to the magblock thing and bought the first thing I saw. Lesson learned, I ordered a hahn dedicated block and should get it soon. I'm looking forward to getting it working like it should.
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