This Ruger manufactured second variation complete trigger guard assembly with the magazine release button is for the earlier intermediate model 44 semi-auto carbines and is in very good condition with light wear. The second variation trigger guard has the upper lip on the forward section like the first variation but also has the magazine release button like that of the third variation.  (file photos)

Note: Ruger model 44 semi-auto carbines with the following serial numbers have been observed with this second variation trigger guard assembly:

No Prefix: 107880 & 114926

100 Prefix: 100-09871, 100-13353 & 100-36694