Daniel Defense Modular Float Rail Installation Instructions
ITEMS INCLUDED: (1) MFR 9.0 Free Float Hand Guard; (3) 3” Modular Picatinny Rail Sections with Mounting Hardware; (1) Proprietary Barrel Nut Wrench; (1) Hardened Steel Barrel Nut; (4) Set Screws w/ Nylon Locking Patch; (1) 5/64” Allen Wrench; (1) 3/32” Allen Wrench. Daniel Defense Modular Float Rail 9.0.
Please be sure to select the correct rail for your gas length. Any tubular free-floating handguard (or rail that uses these handguards for their base). Any handguard that covers or extends over the gas block or in front of the gas block will not work with our system. Any handguard that uses a barrel nut longer than a standard milspec barrel nut. Our system comes in 4 lengths: pistol, carbine, midlength, and rifle. The most common listed measurements for these are: pistol ' 4', carbine ' 7', midlength ' 9', and rifle ' 12'. These measurements can be found by measuring the distance between the front of the upper receiver and the shoulder where the gas block sits.
These measurements are not exact but are rounded to the nearest inch for ease of terminology and for quad rail compatibilty. You can get a more accurate measurement by measuring the barrel extention in the upper receiver and the back of the gas block, where the shoulder starts on the barrel.
While installing the system remove the bushing and spring from the drive rod and slightly loosen the gas block screws. Remove the upper receiver and place the bolt carrier (with our carrier key installed) into the upper pushing it completely into battery. While holding the back of the bolt carrier into battery place the drive rod and gas plug into the gas block and turning it to the 12 o'clock position.
The drive rod should not touch the carrier key when this takes place. If it does gentle tap the gas block forward on the barrel with a rubber or plastic hammer until the drive rod is no longer touching the carrier key. Once you have the drive rod and plug installed you should see a gap between the drive rod sleeve and the gas block wide enough to fit two business cards in. If you do not have a business card available measure the gap and make sure it is between.015' and.025'. Kannazuki No Miko Opening Full Mp3. Once this is accomplished tighten the gas block down. We designed our system to be installed by you, the end user, and can easily be installed by anyone with some basic mechanical skills and a good working knowledge of an AR15.
You can also call here and talk to one of our representatives directly if you have a question during installation. If you do not feel confident in the installation of our system you can take it to a competent local gunsmith or armorist. They should be able to follow the instructions and install the system for you. If they have any questions they can call us here directly and we will help them over the phone with the installations.
Carrier tilt is a symptom of a problem not the actual problem. The actual problem is sloppy or loose tolerances in the receiver.
Our one-piece carrier combined with our bolt spring eliminates carrier tilt in even the sloppiest of receivers. For those who have normal mil/industry spec AR's, the design of our system does not have an issue with carrier tilt.
The fact is piston systems on the market vary from manufacturer to manufacturer we believe that ours has several design features that benefit over the competition in the market. Some manufacturers drill out the hole in the upper receiver a few thousands of an inch too big and the receiver bushing doesn't have the necessary tension needed to hold it into place. An easy remedy for this issue is to cover the outside of the receiver bushing with the red Locktite provided in the system.
It will need approximately 36 hours to properly dry before shooting. Since this particular bushing is only a guide and has no load bearing properties, the Locktite will hold and the bushing will not be knocked loose. The Adams Arms Retro-Fit Piston System keeps the hot burning gases from entering the receiver. This means the normal time and energy exerted on cleaning your AR15/M16 will be drastically reduced. To clean our system, simply wipe off the parts with a dry, clean towel. The areas of the system that see the most dirt is the front of the gas block and the back of the plug and drive rod sleeve. These parts may require some scrubbing with a nylon cleaning brush or old toothbrush and some cleaning solvent.
To access the drive rod for cleaning, simply press the detent button and turn the gas plug knob to the 9 o'clock position. Then remove the drive rod and gas plug. Wipe the outside off with a dry, clean towel and spot clean with your choice of solvent and a nylon brush as needed. If you find an area that has a heavy build up of carbon which will not come off with solvent, use a knife, pick, or some type of scraping tool to remove the heavy spots.
Due to our meloniting process the parts are virtually scratch proof and shouldn't show any wear. Once cleaned, replace system and continue shooting. Oiling the piston system is not necessary; however, if you choose to do so, apply only a thin coat over the moving parts.