The following guns were used in the film True Grit (2010)
File:Truegrit2010-poster.jpg True Grit (2010) Colt Dragoon Mattie Ross (Hailey Steinfeld ) carries her father's Colt Dragoon , as is described in Portis' book. The gun used in the film is an actual percussion Dragoon, while the 1969 film used a cartridge-converted Colt Walker . I imagine the Walker was used due to its even more imposing size to contrast with Mattie's small stature. Still, I appreciate the adherence to the source material.
Error creating thumbnail: File missing Original Colt Dragoon 1st Model - .44 Cal. Designed to address some of the problems encountered with the Colt Walker. Error creating thumbnail: File missing Mattie's Dragoon. Note that it's already capped! Error creating thumbnail: File missing Rooster with Mattie's Dragoon. Colt 1851 Navy Marshall Reuben J. "Rooster" Cogburn (Jeff Bridges ) carries what look like Colt 1851 Navys during his famous charge.
Error creating thumbnail: File missing Colt 1851 Navy - .36 caliber. Error creating thumbnail: File missing Rooster, reins in teeth, charges while dual-wielding 1851 Navies. Error creating thumbnail: File missing Firing. Error creating thumbnail: File missing Single Action Army Rooster also carries what appears to be a Single Action Army of "Cavalry" length.
Error creating thumbnail: File missing Colt Single Action Army "Cavalry" model File:Tg-saa-rooster.jpg Rooster drawing his SAA. Hard to discern, but the frame shape gives a good indication (note the top strap), followed by the next picture... File:Tg-saa-rooster-2.jpg ...where the shape is clearly an SAA. Winchester 1866 "Yellowboy" An unknown member of "Lucky" Ned Pepper's gang wielding an Winchester 1866 "Yellow Boy" , probably during the famous charge at the end.
Error creating thumbnail: File missing Winchester 1866 "Yellow Boy" - .44RF. Error creating thumbnail: File missing Error creating thumbnail: File missing Henry 1860 True to the book, Tom Chaney (Josh Brolin ) carries a Henry rifle , stolen from Mattie Ross' father.
Error creating thumbnail: File missing Henry 1860 - .44RF Error creating thumbnail: File missing Chaney with the Henry slung over his shoulder. Not a great picture, but the solid barrel/magazine tube makes it clear that it's a Henry. Sharps 1874 Cavalry Carbine La Boeuf (Matt Damon ) uses a Sharps 1874 Cavalry Carbine throughout the film.
Error creating thumbnail: File missing Sharps 1874 Cavalry Carbine - .45-70. Error creating thumbnail: File missing Le Boeuf drawing a bead with his Sharps (on "Lucky" Ned Pepper, most likely). Error creating thumbnail: File missing Le Boeuf swinging his Sharps. Unknown Winchester Rooster is also seen firing a Winchester at one point in the trailer, though I can't discern which model.
Error creating thumbnail: File missing Rooster takes aim with his Winchester. 
