That curve made hard contact against the trigger group where it comes to a point which in turn prevented the end cap to fully slide forward. That made the pin almost impossible to insert without some massive
blows from a mini sledge hammer. Well, that didn't sound right to me so I contacted SB Tactical and they were aware of the issue and promptly sent me a new End Cap. I just received this End Cap today and
Low and behold it was cut properly with the 90% angle and slid on and aligned perfectly. Not sure if the End Cap that came with the Brace from Grab A Gun was old stock or perhaps the wrong brace? Either
way SB Tactical came through with flying colors and sent the new End Cap to me without any charge. Their Customer Support is Top Notch! I did attach a picture of the two end caps. The one on the left is
the one I received with my brace and the one on the right is the one that SB Tactical sent me. Huge difference. So if you have an End cap that looks like the one on the left. Don't force the fit and just request
a new one from SB Tactical.