Quote History Quoted:
CMMG developed several successful products for shooting 22 rimfire ammo in AR-15's then 22 long rifle ammunition almost disappeared for a few years. Do to the lack of 22 long rifle ammunition 22 LR AR-15 market took a big hit. CMMG isn't offering as many products now as they did in the past and their focus has shifted to other products that are selling.
The S&W 15-22 also hurt the sale of 22 rimfire conversions and dedicated uppers. There has been more interest in 22 rimfire in the last 3 or 4 months than in about the last three to four years. Many shooters adopted pistol caliber AR-15's in 9 MM instead of 22 LR. The reason for the resurgance of 22 conversions interest is because 22 LR ammunition has started to reappear.
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Interesting historical perspective.
I'm currently interested in rimfire conversion because I can avoid most of the new assault weapon restrictions if my rifle(s) are rimfire instead of centerfire. There may be some new sales for similar reasons.
For that very reason, I am looking at 458 SOCOM conversions, too. If I'm stuck with just ten rounds, they should at least be ten BIG rounds.