I had also seen this (the pictures and video located at the site did not seem to copy into this post):
ADAM-12 Equipment |
"The Most Popular Holster with ADAM-12 Fans
The most popular and asked about “CLAMSHELL” holster was introduced to the Los Angeles Police Department in the 1960’s but didn’t become regularly used until the early 1970’s. This holster was seen regularly in the 1950’s police series, ‘Highway Patrol’ Starring Broderick Crawford. Originally designed for safety, a leather-covered “button” behind the trigger guard released a simple catch on the front edge of the holster. A wound spring forced the holster open and it hinged on the rear edge.
(L-R) William Boyett, Leonard Nemoy and Broderick Crawford in a 1950’s episode of the TV series ‘HIGHWAY PATROL.’ Boyett had already experienced the difficulty with the clamshell holster before A-12 and can be seen putting his gun in his waistband because he found it problematic to re-holster his weapon. When ADAM-12 switched to using the clamshell holster, Boyett is never seen re-holstering his gun.
Easy enough to open, Gary Crosby (Officer Ed Wells) also had difficulty with the clamshell holster and after many takes would end up just using both hands to grab the holster, center it and replace the gun and shut the holster.
Although a fan favorite and a cool looking holster, the actors (and some real police officers) did not care for the clamshell holster at all and many were happy to see it disappear.
JAT Industries supplied LAPD and Adam-12 with gear in 1971: Pictured above is the Velcro, Bruce Browne Buckleless Duty Belt with Clamshell holster, extra ammo pouches for quick loaders, handcuffs, case, LAPD baton and an Airsoft HG-131B Revolver Gas Pistol – another excellent prop in place of an S&W K-15 “Combat Masterpiece” revolver.
Pictured below is the exact rig used by LAPD officers and Malloy and Reed on Adam-12 supplied by JAT Industries. Other companies also supplied similar rigs to the Los Angeles Police Department.
Malloy and Reed draw their firearms from the ‘CLAMSHELL’ holster
CLAMSHELL Holster Demonstration
(same holster as used on Adam-12)
JAT Ind. supplied the Clamshell Holster
for Adam-12 (MARK VII) and the LAPD. ‘Satety Speed’
made a similar rig also used by the LAPD"