Does this barrel;
CMMG BARREL 16.1" 350 LEGEND SBN
have enlarged feedramps in the barrel extension (similar to how 300AAC Blackout barrels often do, due to ammo jam-up feed problems when, or if using typical M4 feedramp shaping/dimensions used for .223/5.56NATO chambering)?
Or, are the barrel extension feedramps the usual size & shape of the .223/5.56?

I attempted to email the manufacturer, but they would not respond (since I had not bought the blasted thing --yet!--).

Question

Does this barrel;
                 CMMG BARREL 16.1" 350 LEGEND SBN
have enlarged feedramps in the barrel extension (similar to how 300AAC Blackout barrels often do, due to ammo jam-up feed problems when, or if using typical M4 feedramp shaping/dimensions used for .223/5.56NATO chambering)?
Or, are the barrel extension feedramps the usual size & shape of the .223/5.56?

I attempted to email the manufacturer, but they would not respond (since I had not bought the blasted thing --yet!--).

Josh T. · Answer

Mark, I've read a couple reviews of people complaining about jams due to the feed ramps but can't find anywhere the size/shape. Unfortunately your best option is to reach out to cmmg. You can contact them by phone at 660-248-2293 ext 1 or email at ( customerservice@cmmg.com ). I know manufacturers are still trying to catch up with firearm demand so may take them awhile to respond. Sorry can't help more but hope this helps some.

James G. · Answer

Mark, I don't know specifically but the  Faxon Firearms Gunner Profile 350 Legend Barrel was tops as tested with the CMMG 350 Legend and two other barrels  :  https://www.snipercountry.com/the-best-350-legend-barrel/

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