with the projection 35 a latch plate spring 37 is secured to the latch plate 18a as well as to the internal housing side wall 34 to bias the latch plate into coplanar alignment with the first side wall 18 such as indicated in fig2 the fig6 8 indicate a modified locking loop 23a having a plurality of elastomeric central web cables 38 extending and securing the first and second legs 24 and 25 together the elastomeric central web 38 is compressible to provide its secure interfitting between the trigger 13 and the firearm frame 14 in this manner relatively little spacing is availed for directing the trigger 13 against the frame to effect actuation of the associated firearm the fig9 and 10 indicate the use of an alarm mechanism employed by the invention wherein switch contacts 39 are mounted to the latch plate 18a for abutment with and to effect actuation of a motion detector 40 mounted within the lock housing 15 and between the internal housing and the latch plate the motion detector includes a time delay 41 arranged for operative engagement with an audible alarm 42 with the audible alarm 42 having an audible alarm speaker 43 directed through the bottom wall typically in surrounding relationship relative to the keyhole slot 22 such as indicated by phantom line indication in fig4 in this manner cooperation with the lock housing effecting its movement effects actuation of the audible alarm for further discouraging young children and the like from access to the associated firearm it should be noted that a battery 34 b 34 44 is indicated in the fig1 wherein any battery commercially.