Our patent pending S.A.F.E. Attachment Point was designed with a "keyway" at the six o'clock position to function with our S.A.F.E QD. But, you can still use a standard QD, H&K Hook, BFG ULoop, or 550 cord. Our attachment was purposely designed this way to provide a broad range of options when attaching a sling to the weapon. 
 
If you require the most secure quick detachable system available on the market today, just combine the T10 S.A.F.E. M-LOK Rail Attachment with our T10 S.A.F.E QD for that added level of security while still having a quick detachable capability.