Can you go by the introductions thread and tell us something about yourself?
There are several opinions on this one on the web. I have the GB model in SS, I love it. I have posted two results from a google search below. Good luck, I hope this helps.
The Mini-14/20GB featured a flash suppressor and a bayonet lug. A "Target Rifle" version with a heavy barrel, adjustable harmonic dampener  and target stock was introduced in 2006. While never adopted by the U.S. military, both civilian and military Mini-14 variants are popular with many police departments as an affordable medium-range patrol rifle to fill the gap between short-range weapons (handguns and shotguns) and sniper rifles.
The rear sight on standard models was an aperture sight with large protective wings, and there were no integral scope bases. The "Ranch Rifle" variant has scope bases integrated into the receiver, and an ejector that ejects the spent cartridge case at a lower angle to avoid hitting a low-mounted scope. The original Ranch Rifle rear sight was a folding-type aperture, which would fit under a scope.
Ruger made design alterations to the Mini-14 in 2005 altering the receiver, rear and front sights. All new Mini-14s are built with integral scope bases, non-folding ghost ring aperture rear sight and a winged front sight similar to that used on the Ruger Police Carbine.
In 2008 Ruger introduced a National Rifle Association model, with a shorter 16.25-inch (413 mm) barrel, polymer stock and two 20-round magazines.
Ruger Mini-14/F30GB semi-automatic rifle is completely original Ruger issue featuring: pistol grip, folding stock, 30rd magazine(s), bayonet lug, threaded barrel, flash hider.
For government users, Ruger produced two specialized versions of the basic rifle - the Mini-14GB and AC-556. The former is still a semi-automatic only weapon, but is fitted with protected front sight, flash-hider and a bayonet lug. The latter is a selective-fired weapon, and thus can be classified as a true assault rifle. All weapons in the Mini-14 family share same basic design, although there are differences in certain parts; for example, AC-556 rifles had slightly longer receiver, which hosts the fire mode switch at its rear part.