.223/5.56 "CQB" Pistol Kit
Factory New Condition
FFL is not required
Unit Price
Quantity Available
Immediate checkout
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Time Left
16d +
11/5/2017 12:05 PM
Item 681521029
Location Chino, CA 91710
Buyer pays estimated shipping for the following option(s): Priority
Shipping methods may vary based upon price
No international shipments
Payment Personal Check, Visa / MasterCard, USPS Money Order, Money Order, Certified Check
Checkout Yes, Immediate
Sales Tax
Seller must collect sales tax from the following states:
CA 8.9%   
Inspection/ Return Policy

The seller of this item assumes all responsibility for this listing. You must contact the seller to resolve any questions or concerns before placing a bid. Payment must be made using U.S. dollars ($) unless otherwise stated in the listing. Firearms may only be shipped to a licensed dealer (FFL Holder). Some listed items may not be legal in every state. Complete your purchase within the law.


If you want get this kit assembled and test fired check out our other listing: AR15 CQB Pistol Kit (Assembled & Test Fired)

AR15 Free Float Pistol Length 4 Inch Handguard Quad Rail Mount

4 inches long 

Made of aircraft 6061 t6 aluminum 

New lower price so take advantage of this great deal 

Great for mounting scopes, sights, lasers and flashlights

Super easy to install. Takes just minutes

this is a 4" length quad rail

Constructed out of t6 6061 aluminum with a hard coat anodized hardening process. T-marked for all your picatinny rail accessories. Lightweight, yet durable.

AR-15 7.5" Barrel .223 Wylde 1:7 Twist

Chamber: 5.56/.223

Length: 7.5"

Twist Rate: 1:7

Gas Port: 0.750"

Gas System: Pistol

Thread Pitch: 1/2x28

Feed Ramps: M4

Finish: Parkerized 

Made In USA

Birdcage Muzzle Break


Machined steel 1.75" (4.4cm) long, 7/8" (2.2cm) O.D. ½”-28 tpi.

Includes crush washer

AR-15 Mil-Spec Upper Receiver- Made in U.S.A.

High quality and lightweight Upper Receiver

Material: Aircraft grade Aluminum

Finish: Black Anodized

AR-15 .223/5.56 Bolt Carrier Group- Black Nitride



Machined from 8620 tool steel

Heat treated to military specifications


Machined from 9310 tool steel

Heat treated to military specifications

Shot Peened

Ground to meet military required tolerances

MPI (Mag Particle Inspected)

Gas Key

Machined from 4140

Heat treated to military specifications


Machined from 4140

Heat treated to military specifications

Shot peened

Firing Pin

Machined from 8640 tool steel

Heat treated to military specifications

Ground to meet military required tolerances

Coated with .0002”-.0003” of hard chrome per MIL-STD-171

Cam Pin

Machined from 4340

Quench and temper heat treat

Ground to meet military required tolerances

Charging Handle

Body is 6061 T6 Billet Aluminum

Latch is 7075 T6 

Black Type III Hardcoat Anodizing

Dust Cover

Dust Cover, Spring, and Rod are constructed from 4150 Steel

Black Type III Hardcoat Anodizing

Forward Assist

Constructed from 4150 Steel

 Includes Plunger, Forward Assist Pawl, Retainer pin, and spring

Gas Block

Low Profile Steel Micro Gas Block - Clamp-on Design

Adjustable Clamp-on design holds firmly to barrel without marring or damaging it. Low-profile to fit under most commercially available handguards.

Fits barrels with a 0.750" Diameter

Material: Hardened Steel

Finish: Smooth Matte Black

Length: 1"

Width: 1"

Includes Screws and Allen wrench

Gas Tube

Material: Stainless Steel (optimal heat and corrosion resistance)

Mil-Spec Dimensions (consistant gas flow)

Length: 6.7"

Made in the U.S.

AR-15 Lower Receiver Parts Kit | LPK18


    Ergonomic Pistol Grip w/ storage compartment (Black)

    Extended Trigger Guard

    Semi Trigger

    Semi Hammer

    Semi Disconnector

    Semi Selector

    Bolt Catch Spring

    Detent Spring

    Bolt Catch Buffer

    Take Down Detent

    Bolt Catch

    Magazine Catch Spring

    Bolt Catch Roll Pin

    Magazine Catch Button

    Magazine Catch

    Front Pivot Pin

    Hammer Spring

    Trigger Spring

    Pistol Grip Screw

    Pistol Grip Lock Washer

    Selector Spring

    Detent Selector

    Hammer Pin

    Trigger Pin

    Take Down Pin

    Buffer Retainer Pin

    Buffer Retainer Spring

    Disconnector Spring 

AR-15 .223/5.56 Complete PISTOL BUFFER TUBE


        Pistol Buffer Tube

        Buffer Tube Foam Pad


        Buffer Spring

        Steel End Plate

        Steel Castle Nut


        CNC machined aluminum buffer tube to fit carbine buffer and spring.

        Hard anodized type III black finish.

        Machined lower slot to accept all end plates and sling mounting accessories.

        Superior Quality Carbine Buffer Spring

        Standard 3 oz buffer Quality Polyurethane Bumper for longer life

        Steel Ambidextrous End plate and Castle nut.

        Buffer tubes measure 7-5/16"

        Buffer Tube Foam Pad is made from NPVC also known as NBR or Nitrile.

New Design Back-Up Front and Rear Sights Combo Sets

Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform.


Impact resistant polymer construction

Spring-loaded flip up sight easily activated from either side or by pressing the top

Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.

Clamps to most any MIL-STD-1913 Picatinny/STANAG 4694 railed hand guard

Protective wings shield the spring-locking A2 front sight post


Weight, w/ hardware: 1.2 oz.

Height above rail, stowed: ~0.51 in.

Length, stowed: 2.6 in.

Length, deployed: 1.5 in.

Seller provided no "Additional Terms of Sale"
Mfg Part Number