The SF designation is often mistakenly said to stand for “Slim Frame” or “Small Frame”. It actually stands for “Short Frame”. The SF frames provide a small diameter grip. This makes it easier for people with smaller hands (or in this case normal hands ) to reach the trigger and is more comfortable to hold.

The G20 SF and G29 SF apparently feel a lot more like the G17 in the hand than their standard frame contempories. From the press release:

Team GLOCK Shooting Squad Captain and Champion shooter Dave Sevigny adds, “I really like the SF design since it approaches the ‘feel’ of the G34, G35 and G17 I have been so fortunate with while competing. GLOCK has another winner here. These pistols will appeal to those who want a powerful cartridge for Law Enforcement, self defense and hunting. Best of all, they have the other GLOCK qualities of reliability, tough Tenifer finish and the controllable GLOCK ‘Safe Action’ fire control system that is successful around the world.” .

NRA Mini-14 Rifle:

Chambered in the popular and proven .223 Rem. cartridge and shipped with two 20-Round magazines. (Note: 20-round magazines are not available in all states and locales; 5-round magazines are available where required to meet state and local regulations limiting magazine capacity.)

Ruger are finally getting their act together!

Ruger has resisted putting in high capacity magazines since Mr Ruger wrote a letter to Congress

“The best way to address the firepower concern is therefore not to try to outlaw or license many millions of older and perfectly legitimate firearms (which would be a licensing effort of staggering proportions) but to prohibit the possession of high capacity magazines. By a simple, complete, and unequivocal ban on large capacity magazines, all the difficulty of defining “assault rifles” and “semi-automatic rifles” is eliminated. The large capacity magazine itself, separate or attached to the firearm, becomes the prohibited item. A single amendment to Federal firearms laws could prohibit their possession or sale and would effectively implement these objectives.”

And then stated on an NBC interview that:

“no honest man needs more than 10 rounds in any gun…” and “I never meant for simple civilians to have my 20 and 30 round magazines…”. It has long been Ruger’s policy to limit sales of those items to Law Enforcement or Military purchasers”

Ruger: Welcome to the 21st century.
More here.