Finish Your Lower Kit:
+ FosTecH Echo Sport Binary Trigger for the AR-15 Platform
+ AR-15 Mil-Spec Buffer Tube Kit
+ Aero Precision M4E1 MOE Lower Parts Kit Minus FCG – Black
+ SB Tactical SBA3 Adjustable Pistol Stabilizing Brace
FosTecH Echo Sport Binary Trigger for the AR-15 Platform
Builders and Shooters know that the best upgrade you can do to your AR-15 is getting a reliable, smooth & light pull trigger. Thanks to the modularity of the AR-15 platform, upgrading your standard Mil-Spec Trigger with enhanced parts, or even a self contained all in one Drop-In trigger is as easy as punching out 2 pins from your lower receiver and ‘Dropping In’ your new upgrade. Binary triggers serve a special function of being able to increase the shooter's ability to shoot faster under a single action of the trigger. Binary triggers work by releasing the hammer when the trigger is pulled, and when the trigger is released. Binary Triggers are a great upgrade for standard AR-15 Rifles, and Pistol Caliber Carbines!
About this Trigger: The Fostech Echo Sport Trigger is more efficient, less complex, and most importantly LESS MONEY than other binary triggers. From an operational standpoint, the only difference the operator will notice is that the selector for the Echo operation is located inside the trigger well on a paddle. Move to the left for Echo Mode and move to the right for Semi-Automatic. The ECHO Sport is an economical pull and releases a trigger for the AR-15 platform. To explain how this trigger functions, every time you pull the trigger a bullet fires, and your BCG cycles a new round, when you release the trigger another bullet fires and your BCG then cycles another new round. This is not a machine gun, this is a single action for every round trigger which is the definition of semi-auto fire. One round per action on the trigger, once per pull, and once per release.
Compatibility: This trigger is designed to work with Mil-Spec AR-15 lower receivers and can be installed in just a few minutes!
Anti-Walk Pins: Not Included - This enhanced trigger is to be a direct replacement for your original trigger. Trigger pins are not included, but you can re-use the trigger pins from your standard lower parts kit.
Color: This trigger is Burnt Bronze accented.
Trigger Style: Standard M4 - This trigger uses a standard Mil-Spec curved trigger shoe.
Main Feature: Binary
Mil-Spec Buffer Tube
If you are in need of the 6-Position Aluminum 6061-T6 (buffer tube) Machined to Mil-Spec dimensions, we offer it separately. No other parts included just the tube.
SPECIFICATIONS:
Length: 7.25"
AR-15 Carbine Castle Nut
Standard Mil-Spec Castle Nut
Mil-Spec Receiver End Plate
Maintains Proper Alignment of Stock & Buffer Tube
M4-style receiver plate includes the engagement tab required to align the buttstock and buffer tube with the lower receiver on carbine models.
Precision, fine blanking process ensures precise edges and superior flatness for correct fit and solid installation.
FEATURES:
Phosphate Finish
Made of 4140 Hardened Steel
AR-15 Carbine Recoil Spring
Made of the finest spring steel rated for 20,000+ rounds
AR-15 Carbine Recoil Buffer
FEATURES:
Weighs 3 oz.
Standard carbine length buffer
Aluminum 6061-T6 exterior
Fits AR-15 and M16 carbine buffer tubes
Use with standard AR-15/M16 carbine buffer springs
BENEFITS:
3 oz. weight allows for more reliable function in rifles with shorter gas systems
3 oz. weight reduces bolt bounce in full auto fire
Increased weight also softens recoil
Standard dwell time for normal cycling of the rifle
Aero Precision M4E1 MOE Lower Parts Kit Minus FCG – Black
General Info: Lower Parts Kits include all of the small bits & pieces needed to make your AR-15 Lower fully functional. Such as the mag release, take-down pins, selector, trigger guard, bolt catch, buffer retainer, roll-pins, detents, and small springs are included to allow completion. This Aero Precision Lower Parts Kit contains all of the necessary pieces needed to complete your build EXCEPT the trigger and components that go along with them. You can find triggers & fire control groups (HERE [https://www.davidsondefensestore.com/gun-triggers.html])
Brand: The M4E1 MOE Lower Parts Kit Minus FCG - Black kit is produced by Aero Precision [https://www.davidsondefensestore.com/aero-precision-ar-products.html] with high-quality steel & brass components.
Brand Info: Aero Precision's goal is simple: Technical Perfection Aero Precision’s roots are deeply tied to aerospace, and their drive for clean, perfect engineering and machining stems from that. When you’re building something that will fly in the air, there is no margin for error. Aero Precision takes that same approach in the firearms industry. Not every manufacturer will have razor thin tolerance levels. Not every manufacturer will personally oversee the development, design, and machining of every part that comes off the line. Aero Precision is not every manufacturer.
Platform: Commercial AR-15
FCG Included: The M4E1 MOE Lower Parts Kit Minus FCG - Black kit does NOT come with a hammer, hammer spring, trigger, trigger spring, disconnector, disconnector spring, or hammer & trigger pins. This kit is for completing your AR-15 lower and allowing an affordable parts kit in the case you already have drop-in triggers on-hand and ready to install.
Grip: The M4E1 MOE Lower Parts Kit Minus FCG - Black kit includes a Black Magpul MOE and grip screw to complete your AR-15 lower receiver.
Weight: The overall weight of the M4E1 MOE Lower Parts Kit Minus FCG - Black kit Kit is 0.39lbs.
SB Tactical SBA3 Adjustable Pistol Stabilizing Brace
General Info: Adjustable Pistol Braces are ideal for AR-15 builds with barrels under 16". Adjustable Pistol Braces feature ideal stabilization properties and the ability to 'adjust' the length of the brace for proper mounting against the shooter's forearm. Not all adjustable pistol braces have a strap included, but pistol braces with included straps make allow the shooter the ability to wield their AR pistol firmly, with minimal weight wobble. Adjustable Pistol braces were designed originally with the idea of allowing wounded veterans to utilize shorter barreled ARs they wouldn't be otherwise able to wield.
Brand: SB Tactical - As the originator of the forearm Pistol Stabilizing Brace®, SB Tactical® is a groundbreaking thought leader committed to providing hard-core shooters what they need. In an industry reluctant to challenge conventional wisdom, we transformed the possibilities of large frame pistols. We will stop at nothing to help our customers overcome challenges with brilliantly engineered, expertly constructed solutions.
Model: SBA3 Adjustable Pistol Brace
Weight: This brace features an overall weight of 0.665 lbs.
Platform: AR-15
Buffer Tube Compatibility - Carbine Buffer Tube: The SBA3 Adjustable Pistol Brace fits a standard Mil-Spec buffer tube and once installed the brace can be freely adjusted along with various positions on the buffer tube assembly.
QD Sling: The SBA3 Adjustable Pistol Brace comes with QD attachment points for solid sling mounting.
Material: The SBA3 Adjustable Pistol Brace Is made out of Reinforced Composite Polymer and Nylon for reliability, impact resistance, and comfort during use.
Finish: The SBA3 Adjustable Pistol Brace is finished with a black polymer appearance.
To view the most up-to-date shipping times Click HERE. To view Warranty, Returns, Terms & Restrictions Click HERE. 
