Here's the IR list from 49ers.com
98 Blair III, Ronald DL 6-4 270 24 2 Appalachian State
13 Burbridge, Aaron WR 6-1 208 23 2 Michigan State
95 Carradine, Tank DL 6-4 270 27 5 Florida State
65 Garnett, Joshua G 6-5 321 23 2 Stanford
47 Gilbert, Jimmie LB 6-5 230 22 R Colorado
30 Iworah, Prince Charles CB 5-11 193 24 1 Western Kentucky
30 Jackson, Asa CB 5-10 183 27 5 Cal Poly-S.L.O.
43 James, Chanceller S 6-2 208 23 R Boise State
92 Jones, Chris DL 6-1 293 27 4 Bowling Green State
20 Jones, Don DB 5-11 195 27 5 Arkansas State
48 Newsom, Donavin LB 6-2 240 24 R Missouri
23 Redmond, Will CB 6-0 186 23 2 Mississippi State
51 Smith, Malcolm LB 6-0 225 28 7 USC
32 Williams, Joe RB 5-11 205 24 R Utah
Now add Arik Armstead to that list also