M4 Feed ramps
- Thread starter Ghost40
- Start date
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- Aug 17, 2011
- 26,177
Technically, yes.
But it almost appears as if someone has removed the anodizing from the receiver cuts.
But it almost appears as if someone has removed the anodizing from the receiver cuts.
clandestine
AR-15 Savant
Yup, and that isn't good.
- Aug 17, 2011
- 26,177
The work they did inside the extension doesn't look that hot either, now that I look at it closer.
- Jul 29, 2014
- 50,068
Looks like they were both cut at the same time.
- Aug 17, 2011
- 26,177
Someone opened up the ramps and did the cuts with the barrel in the receiver.
Walk away.
Walk away.
- Aug 17, 2011
- 26,177
You could replace the upper receiver without issue, I'd guess that someone at some point decided to cut M4 ramps into a rifle receiver - being as it was sold as New, that'd only leave DPMS as the culprit.
- Jul 29, 2014
- 50,068
Just make sure ramps on the barrel are cut as deep, or deeper than the new receiver's are. If ramps on the barrel are not as deep as receiver's ramps, rounds will hang up on the edge of the bbl. ramp. Figure all this out before mounting the barrel.
or the shop that sold it.
unlike everything on that tv show, that HAS been dun ba-foe.
- Aug 17, 2011
- 26,177
Quite true, quite true...
I had a closer look last night at it, unfortunately it does in fact look like post-finish machining. My Spikes Tactical upper should be arriving today (has M4s). I will have the shop transplant all the parts for me since I lack just about all the tools (apartment living). I am going to point out the feed ramps to make sure the new upper will line up correctly. If it doesn't, I'm not sure recourse I would have. I did leave a message with DPMS last evening. Not sure what they can do to help, maybe just verify it wasn't done by them. At this point I think it just amounts to accept it for what it is and move on.
I think the key here is that I should have done a bit more research before I started buying parts. I'm just glad that the barrel has the M4 ramps. Makes putting on the new receiver a little better since I didn't start researching this until AFTER i ordered the Spike's
I think the key here is that I should have done a bit more research before I started buying parts. I'm just glad that the barrel has the M4 ramps. Makes putting on the new receiver a little better since I didn't start researching this until AFTER i ordered the Spike's
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