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The Range
Rifle & Shotgun Discussion
AR-15 conversion ?'s
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<blockquote data-quote="KurtM" data-source="post: 1047485" data-attributes="member: 6064"><p>Some run well some don't. I have seen the Ceiner units break firing pins, and as mentioned they are hard to get from Arthur, but they are good units if you get one that runs well. The up side to the Ciener units is they will run on a full auto lower, as will the CMMG. If you are using ANY of these type of drop in units I really recommend Black Dog Machine magazines. they are the best out there.</p><p></p><p>As for dedicated uppers there really is only one worth having in my opinion and that is the new Upper From Nordic Components, The aren't quit out on the market yet, but will be in the next month or so. It is the only unit that I have seen that has the reliability of a 10-22. I have been one of the testers on this program and know both of the other beta testers on this project and all 3 units in the field have run over 10,000 rounds now with less than 100 jams and only cleaned every 2000 rounds. Kevin at Black Dog Machine just got one and already has 3000 rounds through his with no cleaning and it is running perfectly. So far they will run just about anything except it has a little trouble with the Remington bulk packed golden bullets.</p><p>It has the exact weight and balance as an M-4 and MSRP will be around $500 which means you will probably find them a bit cheaper.</p></blockquote><p></p>
[QUOTE="KurtM, post: 1047485, member: 6064"] Some run well some don't. I have seen the Ceiner units break firing pins, and as mentioned they are hard to get from Arthur, but they are good units if you get one that runs well. The up side to the Ciener units is they will run on a full auto lower, as will the CMMG. If you are using ANY of these type of drop in units I really recommend Black Dog Machine magazines. they are the best out there. As for dedicated uppers there really is only one worth having in my opinion and that is the new Upper From Nordic Components, The aren't quit out on the market yet, but will be in the next month or so. It is the only unit that I have seen that has the reliability of a 10-22. I have been one of the testers on this program and know both of the other beta testers on this project and all 3 units in the field have run over 10,000 rounds now with less than 100 jams and only cleaned every 2000 rounds. Kevin at Black Dog Machine just got one and already has 3000 rounds through his with no cleaning and it is running perfectly. So far they will run just about anything except it has a little trouble with the Remington bulk packed golden bullets. It has the exact weight and balance as an M-4 and MSRP will be around $500 which means you will probably find them a bit cheaper. [/QUOTE]
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