Wrathen Posted January 24 Share Posted January 24 First up while I have a lot of experience with it handguns, but my rifle/AR15 experience is still low with less than 3-3.5k rounds. I have a Daniel DDM4v7 that I ran, then Form 1’ed for an SRB and built a new upper for an 11.5 setup. I was wanting to maybe try a 300BLK for suppressed home defense. I have the old Daniel upper and barrel sitting in the safe and was wondering if I could pull the barrel and use the upper for a 300blk build or just leave it and built a complete upper? Quote Link to comment Share on other sites More sharing options...
TonytheTiger Posted January 25 Share Posted January 25 (edited) Absolutely, just needs the barrel change and likely a different length of gas tube and you're in business. Edited January 25 by TonytheTiger Quote Link to comment Share on other sites More sharing options...
Knight85 Posted January 26 Share Posted January 26 They should fit fine, as long as both upper and lower are within spec. Quote Link to comment Share on other sites More sharing options...
Wrathen Posted January 26 Author Share Posted January 26 On 1/24/2023 at 4:39 PM, TonytheTiger said: Absolutely, just needs the barrel change and likely a different length of gas tube and you're in business. Thanks 7 hours ago, Knight85 said: They should fit fine, as long as both upper and lower are within spec. the upper came off this lower and ran fine for 1800’ish rounds together. I would just be putting a new hand guard and barrel on the upper Quote Link to comment Share on other sites More sharing options...
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