Pistol Kits (5" - 13.9")

Moriarti Arms is your one-stop solution for all your firearm accessories. Whether you want to buy a new gun or customize your existing AR pistol or rifle, we have everything you need, and that too, at unbelievable prices. There’s nothing more pleasing than to have your pistol or firearm customized to your liking. However, you need a high-quality AR pistol build kit for incredible aesthetics and exceptional performance.  If you’re looking for a premium AR pistol build kit, you’ve come to the right place. So, browse our excellent selection of AR15 Pistol Kits at the best prices. Find everything you need to complete your AR15 build.

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  • AR-15 5.56 NATO 10.5" PISTOL KIT /SLICK SIDE / 10" HANDGUARD - COLOR TIFFANY/RED/PINK
    AR-15 5.56 NATO 10.5" PISTOL KIT /10" HANDGUARD - COLOR TIFFANY/RED/PINK contains all components to complete your AR-15 build EXCEPT 80% stripped lower receiver. All components are Mil Spec and made in the USA. PLEASE CHOOSE DESIRED COLOR ON TOP OF PAGE. Barrel: 10.5" 41V50 M4, Nitride ..
    AR-15 5.56 NATO 10.5" PISTOL KIT /10" HANDGUARD - COLOR TIFFANY/RED...
    $399.95$649.95
  • AR-15 5.56 NATO 5'' STAY SPOOKY PISTOL KIT - BILLET SLICK UPPER WITH 4'' HANDGUARD- COLOR SET UPPER OPTION
    AR-15 5.56 NATO 5'' PISTOL KIT - BILLET SLICK UPPER WITH 4'' HANDGUARD- COLOR SET UPPER OPTION  Kit  includes:- 5.56 NATO PISTOL 5" INCH PISTOL LENGTH BARREL 1:5 5R TWIST - BLACK NITRIDE (MADE IN USA)- AR-15 Tactical Charging Handle- M16 BCG, NITRIDE- AR-15 Ejection Port Cover | Dust Co..
    AR-15 5.56 NATO 5'' PISTOL KIT - BILLET SLICK UPPER WITH 4'' HANDGU...
    $399.95$599.95
  • AR-15 5.56 NATO 7.5" PISTOL KIT /MLOK / FAKE SUPPRESSOR / SBA3
    AR-15 5.56 NATO 7.5" PISTOL KIT / MLOK / FAKE SUPPRESSOR / SBA3Kit contains all components to complete your AR-15 build EXCEPT 80% stripped lower receiver. All components are Mil Spec and made in the USA.  Barrel: 7.5" 41V50 M4, Nitride Finish Chamber: 5.56 NATO Twist: 1 in 7..
    AR-15 5.56 NATO 7.5" PISTOL KIT / MLOK / FAKE SUPPRESSOR / SBA3Kit&...
    $449.95$649.95
  • AR-15 5.56/.223  7.5" pistol kit - MLOK / SBA3 /BCG NOT INCLUDED
    This AR Pistol kit includes EVERYTHING you need to build the Shorty except for a stripped 80% lower receiver and BCG. The foundation of this pistol kit is a MIL-SPEC type III upper receiver with a hard coat anodized finish and machined from 7075-T6 forged aluminum. This AR Pistol Kit features a SB T..
    This AR Pistol kit includes EVERYTHING you need to build the Shorty...
    $349.95$649.95
  • AR-15 5.56/.223 10.5" M4 Pistol Kit / Mlok / SBA3
    AR-15 5.56/.223 10.5" Pistol Kit / Mlok / SBA3 contains all components to complete your AR-15 Pistol.  80% Lower Receiver is NOT INCLUDED. Barrel - 12.5" 4150 CMV, Nitride FinishChamber - 5.56 NATO  (CAN SHOOT BOTH ROUNDS, 5.56 and .223) Barrel Twist - 1×8 Ba..
    AR-15 5.56/.223 10.5" Pistol Kit / Mlok / SBA3 contains all compone...
    $449.95$699.95
  • AR-15 5.56/.223 10.5" M4 Pistol Kit / Quadrail / Classic
    AR-15 5.56/.223 10.5" M4 tactical premium pistol kit contains all components to complete your AR-15 build. The kit comes WITHOUT 80% stripped lower receiver. All options and modifications to your kit are available on top of this page. Upper is made from 7075 T-6 Aluminum.  A..
    AR-15 5.56/.223 10.5" M4 tactical premium pistol kit cont...
    $349.95$599.95
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  • AR-15 5.56/.223 10.5" Pistol Build Kit / M-Lok / Adj Shockwave
    AR-15 5.56/.223 10.5" Pistol Build Kit / M-Lok / Adj Shockwave. This kit contains all components to complete your AR-15 project except 80% stripped lower receiver. All options and modifications to your kit are available on top of this page. All components are Mil Spec and made in the USA.&..
    AR-15 5.56/.223 10.5" Pistol Build Kit / M-Lok / Adj Shockwave.&nbs...
    $419.95$649.95
  • AR-15 5.56/.223 10.5" pistol kit - MLOK / SBA3 /NO BCG
    AR-15 5.56/.223 10.5" pistol kit - MLOK / SBA3 /NO BCG contains all components to complete your AR-15 build EXCEPT 80% stripped lower receiver and BCG.  All components are Mil Spec and made in the USA. Our handguards are free float.  Barrel: 10.5” Heavy Barrel, 41V50 Parkerize..
    AR-15 5.56/.223 10.5" pistol kit - MLOK / SBA3 /NO BCG contains all...
    $399.95$699.95
  • AR-15 5.56/.223 10.5" pistol kit - MLOK / VERACE OPTICS / AMBI CH /NO BCG
    AR-15 5.56/.223 10.5" pistol kit - MLOK / VERACE OPTICS / AMBI CH /NO BCG bundle contains all components to complete your AR-15 build EXCEPT 80% stripped lower receiver and BCG.  All components are Mil Spec and made in the USA. Our handguards are free float.  Barrel: 10.5” Hea..
    AR-15 5.56/.223 10.5" pistol kit - MLOK / VERACE OPTICS / AMBI CH /...
    $449.95$699.95
  • AR-15 5.56/.223 10.5" Pistol Kit /10" slim mlok / Classic / No BCG
    AR-15 5.56/.223 10.5" Pistol Kit /10" slim mlok / Classic / No BCG contains all components to complete your AR-15 build. The kit comes WITHOUT 80% stripped lower receiver and BCG. All options and modifications to your kit are available on top of this page.  All components are Mil Spec..
    AR-15 5.56/.223 10.5" Pistol Kit /10" slim mlok / Classic / No BCG&...
    $269.95$489.95
  • AR-15 5.56/.223 10.5" Pistol Kit /10" slim mlok rail / Classic
    AR-15 5.56/.223 10.5" complete pistol kit w/10" slim mlok rail contains all components to complete your AR-15 build. The kit comes WITHOUT 80% stripped lower receiver. All options and modifications to your kit are available on top of this page.  All components are Mil Spec and made in..
    AR-15 5.56/.223 10.5" complete pistol kit w/10" slim mlok rail ...
    $299.95$549.95
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  • AR-15 5.56/.223 10.5" Tactical Pistol Kit / 7" FAKE CAN / SBA3
    AR-15 5.56/.223 10.5" Tactical Pistol Kit / 7" FAKE CAN / SBA3 - contains all components to complete your AR-15 pistol build. Make those SBAs legal again by pinning 7" fake can to 10.5" barrel! The kit comes WITHOUT 80% stripped lower receiver. Upper is made from 7075 T-6 Aluminum.  A..
    AR-15 5.56/.223 10.5" Tactical Pistol Kit / 7" FAKE CAN / SBA3 - co...
    $449.95$599.95
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  • AR-15 5.56/.223 12.5" M4 Pistol Kit / Mlok / SBA3
    AR-15 5.56/.223 12.5" Pistol Kit / Mlok / SBA3 contains all components to complete your AR-15 Pistol.  80% Lower Receiver is NOT INCLUDED. Barrel - 12.5" 4150 CMV, Nitride FinishChamber - 5.56 NATO  (CAN SHOOT BOTH ROUNDS, 5.56 and .223) Barrel Twist - 1×8 Ba..
    AR-15 5.56/.223 12.5" Pistol Kit / Mlok / SBA3 contains all compone...
    $429.95$599.95
  • AR-15 5.56/.223 5.5" 5.56 UNASSEMBLED UPPER ASSEMBLY KIT / BCG & CH
    AR-15 5.56/.223 5.5" 5.56 UNASSEMBLED UPPER ASSEMBLY KIT (1) 5.5" 5.56 barrel, 1:5 twist, Micro Gas system,1/2-28 muzzle thread, nitride finish • 5.56 upper receiver with M4 feedramps • (1) 5.56  Bolt Carrier Group • Low profile steel gas block • Micro gas tube • (1) 4" MLOK hand guard • A2 ..
    AR-15 5.56/.223 5.5" 5.56 UNASSEMBLED UPPER ASSEMBLY KIT (1) 5.5...
    $249.95$499.95
  • AR-15 5.56/.223 5.5" COMPLETE COMPRESSION SERIES MICRO PISTOL KIT / COLOR CHOICE
    Make it fun. Make it your own. This pistol kit contains all components to complete your AR-15 Rifle, except 80 percent stripped lower receiver, available for purchase separately. AR-15 5.56/.223 5.5" COMPLETE COMPRESSION SERIES MICRO PISTOL KIT INCLUDES: 5.5" 5.56mm 1:5 Twist M4 4150 B..
    Make it fun. Make it your own. This pistol kit contains all compon...
    $469.95$799.95
  • AR-15 5.56/.223 5.5" COMPRESSION SERIES MICRO PISTOL KIT / SBA3
    AR-15 5.56/.223 5.5" COMPRESSION SERIES MICRO PISTOL KIT / SBA3.  AR15/M16 platform. Made in USA.THIS KIT IS EVERYTHING YOU NEED TO BUILD A MICRO AR PISTOL EXCEPT A STRIPPED LOWER. The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hard..
    AR-15 5.56/.223 5.5" COMPRESSION SERIES MICRO PISTOL KIT / SBA3.&nb...
    $449.95$699.95
  • AR-15 5.56/.223 5.5" MICRO PISTOL KIT / MLOK / NO BCG / CLASSIC
    AR-15 5.56/.223 5.5" MICRO PISTOL KIT / MLOK / NO BCG / CLASSIC INCLUDES: 5.5" 5.56mm 1:5 Twist M4 4150 Barrel 1/2 x 28 Crush Washer 1/2 x 28 A2 flash hider, Nitride AR-15 M4Upper Receiver, forged, feedramps 4"  Mlok Handguard with Barrel Nut & Hardware (rail may differ in ..
    AR-15 5.56/.223 5.5" MICRO PISTOL KIT / MLOK / NO BCG / CLASSIC INC...
    $299.95$499.95
  • AR-15 5.56/.223 5.5″ MICRO PISTOL KIT / 1:5 / MICRO BUFFER / 4″ M-LOK
    AR-15 5.56/.223 5.5″ MICRO PISTOL KIT / 1:5 / MICRO BUFFER / 4″ M-LOK. Discover the impressive capabilities of the Micro AR Pistol, designed by Moriarti Armaments for compact power. Precision engineering has produced a firearm that offers exceptional performance and versatility, delivering accuracy ..
    AR-15 5.56/.223 5.5″ MICRO PISTOL KIT / 1:5 / MICRO BUFFER / 4″ M-L...
    $449.95$649.95
  • AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT -  TUNGSTEN
    AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT -  TUNGSTEN 7.5" 5.56mm 1:7 Twist M4 4150 CMV Barrel 1/2 x 28 Crush Washer 1/2 x 28 Micro Muzzle Comp, Nitride A3 flat top 5.56 Upper Receiver, 7075 aluminum forgings, anodized black 7" AIRLITE Series Mlok Handguard..
    AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT -  ...
    $399.95$649.95
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  • AR-15 5.56/.223 7.5" Pistol Build Kit / M-Lok / Adj Shockwave
    AR-15 5.56/.223 7.5" Pistol Build Kit / M-Lok / Adj Shockwave. This kit contains all components to complete your AR-15 project except 80% stripped lower receiver. All options and modifications to your kit are available on top of this page. All components are Mil Spec and made in the USA.&n..
    AR-15 5.56/.223 7.5" Pistol Build Kit / M-Lok / Adj Shockwave. ...
    $429.95$649.95
  • AR-15 5.56/.223 7.5" ULTRALIGHT SERIES PISTOL KIT -  ANODIZED RED
    AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT -  ANODIZED RED 7.5" 5.56mm 1:7 Twist M4 4150 Barrel 1/2 x 28 Crush Washer 1/2 x 28 A2, Nitride 5.56 Upper Receiver, Billet  7" AIRLITE Series Mlok Handguard with Barrel Nut & Hardware 5.56 Ejecti..
    AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT -  ...
    $399.95$649.95
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  • AR-15 5.56/.223 7.5" ULTRALIGHT SERIES PISTOL KIT - GOLD
    Make it fun. Make it your own. Introducing the Ultralight Series Pistol Kit in Gold, chambered in the 5.56/.223 caliber with a compact 7 inch nitride coated barrel. This pistol kit contains all components to complete your AR-15 Rifle, except 80 percent stripped lower receiver, available for purcha..
    Make it fun. Make it your own. Introducing the Ultralight Series Pi...
    $399.95$649.95
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  • AR-15 5.56/.223 8.5" ULTRALIGHT HONEYCOMB SERIES PISTOL KIT / CLEAR / TRIDENT
    AR-15 5.56/.223 8.5" ULTRALIGHT HONEYCOMB SERIES PISTOL KIT -  CLEAR includes: 8.5" 5.56mm 1:7 Twist M4 4150 Nitride Barrel 1/2 x 28 Crush Washer 1/2 x 28 Trident Flash Can Comp, Nitride A3 flat top 5.56 Upper Receiver, 7075 aluminum forgings, anodized black 9" AIRLITE Seri..
    AR-15 5.56/.223 8.5" ULTRALIGHT HONEYCOMB SERIES PISTOL KIT - ...
    $449.95$799.95
  • AR-15 7.5" 5.56/.223 Stainless Pistol Kit / 7" Mlok Slim Rail
    AR-15 7.5" 5.56/.223 Stainless Pistol Kit / 7" Mlok Slim Rail.  The kit comes WITHOUT 80% stripped lower receiver.  All options and modifications to your kit are available on top of this page. Upper is made from 7075 T-6 Aluminum.  All components are Mil Spec and made in the..
    AR-15 7.5" 5.56/.223 Stainless Pistol Kit / 7" Mlok Slim Rail. ...
    $329.95$569.95
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