About this app

Early developments of "Machinepistols"
- In the confines of the WW I trenches
- Luger pistol with the 32-round drum magazine
- Machine fire carbine version of the Mauser C96 pistol
- Schmeisser's design known as the "Maschinen Pistole 18"
- Spanish selective fire copies of the Mauser C96
- Bestegui Hermanos (Royal) & Unceta & Cie (ASTRA)
- Mauser C96 with a selective fire capability
Early Browning type pistols with selective fire
- Himan S. Lebman's prototypes
- John Dillinger and Baby face Nelson
- Star or Llama selective fire Browning designs
- Star Model D
- Llama Model "Plus Ultra"
- French UNION Model "Rafaleur"
The STAR machine pistol Model 1922
- The trigger mechanism
- Selective Fire Mechanism
- Detail of the new parts and modifications
- Operation of the Star MD in full-auto mode
- Cyclic rate retarder device
Mechanical features of the Colt 1911-A1
- Phantom view of the Colt Model 1911-A1
- The Colt 1911 trigger mechanism
- The function of the disconnector
- When the slide recoils
- The grip safety
- The thumb safety
Joe Ramos first machine pistol prototype
- Joe Ramos and Hector Villanueva
- Late 60's researches
- The experience bloody gunbattles at short range
- Preliminary works were undertaken by military armorers
- A request to private contractors and gunsmiths
- The JURAMS CMP-45 as one of the contenders
- First prototype working with an "open slide" action
- Mechanical details
- Conclusions of all the short comings
Joe Ramos second machine pistol prototype
- A completely new approach
- To preserved the original design of the Model 1911-A1
- Modifications of the 1911-A1 receiver
- Modification of the grip safety
- Modification of the trigger stirrup
- Creation of new parts
- Sear lever with connector
- The tripping lever
- The fire selector mechanism
- Selector of pivoting type or of sliding type
Functioning of the J. Ramos selective fire system
- Firing in semi-auto mode
- Close-up view of the selective fire mechanism
- When the trigger is depressed
- Step by step explanation
- Firing in full-auto mode
- When the trigger is depressed
- Step by step explanation
Front folding grips and other improvements
- The first model of forward grip
- A first improvement by extending the grip base
- How the base was fastened to the trigger guard
- Technical details of the folding grip designs
- The final version was an all-metal folding grip
- High capacity magazines
- Drum magazines and extended straight magazines
- Removable or even folding shoulder stocks
- Modification of the Colt main spring housing
- Stocks made from wood planks
- Stock attachment of the "Lebanese style"
The Combat Submachine Pistol
- The Jurams CSP - 45 (Combat Submachine Pistol)
- 20 and 30-round double column straight magazines
- Several sizes of barrel
- Ventilated jacket & muzzle break
- Concealment of the tripping mechanism
- The CSP - 45 was nearing completion in early 1972
- ANIMATED SEQUENCE of the Ramos selective fire mechanism
Since the year 2000, "HLebooks.com" is specialized in the publication of downloadable technical textbooks on collectable firearms.

New features

If you encounter problems with the images not showing off, go to the Parameters of your device and select "APPs". You will find there, the list of all the APPs available in your phone.
Click on the APP concerned by the problem, and, in the "storage" section, suppress data and cache.Then, come back to the APP parameters and select the "Permission" section ("no permission allowed" should be mentioned). In that section activate the "Storage" option. Run your APP again.