Magpul has released their updated PMAG 20 LR/SR GEN M3 magazines. Made in the USA, the 20-round 7.62 NATO/.308 Winchester mags feature all the improvements of the new M3 PMAGs and will replace the MAG243 line of magazines. They retail for $19.95 and are now being shipped to dealers. A 10-round and 25-round version of the LR/SR GEN M3 Mags will be coming soon according to Magpul.
Check out Magpul.com for more info.