This is an image of a Ruger LCRX with 3" barrel, on left, and Ruger LCRX with 2" barrel, on right, both chambered in 38 Special +P. They are different in barrel length, sights, and grips.
<a href="//commons.wikimedia.org/wiki/User:HalfGig" title="User:HalfGig">HalfGig</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>