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Build Kits
Build your pistol caliber AR confidently by selecting all-American Made pistol build kits and caliber AR parts.
MORIARTI ARMS ® AR9 BUILDS HAVE BEEN SPECIFICALLY DESIGNED FOR SUPERIOR RELIABILITY AND MAXIMUM PERFORMANCE AND ACCURACY. MORIARTI'S MA9 DIFFERENCE - ALL BILLET BUILD, NOTHING FORGED, AT COMPETITIVE LOW PRICES. FEATURING MORIARTI ARMS BILLET MA-9 GLOCK STYLE LOWER RECEIVERS TO COMPLETE YOUR AR-9 LOOK WITH OR WITHOUT LAST ROUND BOLT HOLD OPEN. PLEASE NOTE: FOR BEST PERFORMANCE, PLEASE PAIR THE BUILD WITH OUR MORIARTI ARMS LOWERS. WE CANNOT GUARANTEE PERFORMANCE WITH OTHER MANUFACTURERS SUCH AS PALMETTO AND CMMG.
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AR-9 9MM 4.5" Mini Pistol Build Kit w/ SBA3 Brace - M-Lok / Non-LRBHOBuild your custom AR-9 9MM pistol with this 4.5" Mini Pistol Build Kit featuring M-Lok handguard and the SBA3 Pistol Brace. This enhanced Glock-style kit includes all the components you need for your AR-9 project, except for the 80..AR-9 9MM 4.5" Mini Pistol Build Kit w/ SBA3 Brace - M-Lok / Non-LRB...$449.95$649.95
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AR-9 9MM 4.5" Pistol Build Kit - Side Cut Billet Upper with 4" Handguard - Cerakote Camo Color OptionsBuild your custom AR-9 pistol with this complete 9MM AR build kit from Moriarti Armaments. Designed for precision and performance, this kit features a side-cut billet upper and 4" handguard with Cer..AR-9 9MM 4.5" Pistol Build Kit - Side Cut Billet Upper with 4" Hand...$449.95$599.95 -
MA-9 9MM 4.5" Micro Glock Style Pistol Kit - Choose Color | Non-LRBHO - Complete Your DIY 9MM ProjectBuild your dream 9MM pistol with the MA-9 4.5" Micro Glock Style Pistol Kit! This kit includes everything you need to complete your DIY 9MM project, except for the 80% lower receiver. With a variety ..MA-9 9MM 4.5" Micro Glock Style Pistol Kit - Choose Color | Non-LRB...$499.95$799.95
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AR 10MM 16" Slick Side Rifle Kit / NON- LRBHO / Mlok / Alpha IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER, WITHOUT LRBHO. This kit is compatible with AR-45 Glock Style lower receiver and Glock 20 Mags. AR-10MM 16" KIT FEATURES:BARREL - 16" 10MM MATCH..AR 10MM 16" Slick Side Rifle Kit / NON- LRBHO / Mlok / Alpha ...$499.95$799.95 -
AR 10mm 8" SLICK SIDE PREMIUM PISTOL KIT / SHROUD / MLOK / SBA3 / NON-LRBHO - KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR 10mm BUILD EXCEPT LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. This kit is compatible with AR-45 Glock Style lower receiver and large frame Glock 20 Mags. THIS KIT ..AR 10mm 8" SLICK SIDE PREMIUM PISTOL KIT / SHROUD / MLOK / SBA3 / N...$599.95$799.95
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AR 40S&W 16" MA-40 Slick Side Rifle Kit IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER, WITHOUT LRBHO. KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR BUILD EXCEPT THE LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. This kit is compatible with AR-9 Glock Style lower r..AR 40S&W 16" MA-40 Slick Side Rifle Kit IS BUILD ON&...$599.95$899.95 -
Moriarti Arms, Blow Back, 10MM, 4.5" Barrel, Black Finish, Slick side upper, Non-LRBHO, Mlok, Glock compatibleBARREL - 4.5" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED IN 10mm AR platform. TWIST: 1:16. 5/8-24 MUZZLE BRAKE THREADS. BLOWBACK. BARREL IS FI..Moriarti Arms, Blow Back, 10MM, 4.5" Barrel, Black Finish, Slick si...$499.95$699.95 -
AR-40 40 S&W 10.5" Pistol Build Kit / 10" M-LOK / DIVERTER / SBA3 / SLICK contains all the components to complete your AR-40 S&W project. This kit is based on Mil Spec slick side upper and designed to work Glock style lowers. The kit comes with everything you need EXCEPT 80% lower ..AR-40 40 S&W 10.5" Pistol Build Kit / 10" M-LOK / DIVERTER / SB...$549.95$899.95 -
AR-40 40 S&W 4.5" MICRO PISTOL BUILD KIT / MLOK/ CLASSIC contains all components to complete your AR-40 build. The kit comes WITHOUT 80% stripped lower receiver. All components are Mil Spec and made in the USA. Barrel: 4.5" 4150 CMV M4 Profile Chamber: 40 S&W..AR-40 40 S&W 4.5" MICRO PISTOL BUILD KIT / MLOK/ CLASSIC c...$399.95$699.95
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AR-40 40 S&W 8" Micro Pistol Build Kit / Slim Octagonal Cone / ADJ Shockwave contains all the components to complete your AR-40 S&W project. This kit is based on Mil Spec slick side upper and designed to work Glock style lowers. The kit comes with everything you need EXCEPT 80% low..AR-40 40 S&W 8" Micro Pistol Build Kit / Slim Octagonal Cone / ...$549.95$899.95 -
MORIARTI ARMAMENTS IS PROUD TO PRESENT AN INTRODUCTORY KIT FOR AR-45 .45 ACP 16" MLOK COMPLETE RIFLE KIT W/HEAVY BUFFER, NON-LRBHO. KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR AR-45 BUILD EXCEPT 80% LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. AR-45 RIFLE KIT FEATUR..MORIARTI ARMAMENTS IS PROUD TO PRESENT AN INTRODUCTORY KIT FOR ...$499.95$749.99
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AR-45 .45 ACP 16" MLOK UNASSEMBLED UPPER KIT W/ BCG, NON-LRBHO BARREL - 16" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED IN 45 ACP. TWIST: 1:16. 5/8-24 MUZZLE BRAKE THREADS. INTEGRATED FEED RAMP. BARREL IS FINISHED OFF WITH A2 FLASH HIDER DE..AR-45 .45 ACP 16" MLOK UNASSEMBLED UPPER KIT W/ BCG, NON-LRBHO B...$349.95$549.99
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Moriarti Arms, Blow Back, 45 ACP, 4.5" Barrel, Black Finish, Slick side upper, Non-LRBHO, MlokBARREL - 4.5" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED IN 45 ACP. TWIST: 1:16. 5/8-24 MUZZLE BRAKE THREADS. BLOWBACK. BARREL IS FINISHED OFF WITH A2 FLASH..Moriarti Arms, Blow Back, 45 ACP, 4.5" Barrel, Black Finish, Slick ...$499.95$799.95
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MORIARTI ARMAMENTS IS PROUD TO PRESENT AN INTRODUCTORY KIT FOR AR-45 .45 ACP 7f.5" MLOK COMPLETE PISTOL KIT W/HEAVY BUFFER, NON-LRBHO. KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR AR-45 BUILD EXCEPT LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. AR-45 PISTOL KIT FEATURES: ..MORIARTI ARMAMENTS IS PROUD TO PRESENT AN INTRODUCTORY KIT FOR AR-4...$499.95$699.99
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AR-45 .45 ACP 8" SLICK SIDE PREMIUM CONE PISTOL KIT / MLOK / LRBHO IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN). KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR AR-45 BUILD EXCEPT LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. AR-4..AR-45 .45 ACP 8" SLICK SIDE PREMIUM CONE PISTOL KIT / MLOK / LRBHO&...$599.95$759.99 -
AR-45 45 ACP 7.5" Micro Pistol Build Kit / Shroud / Mlok / SBA3 kit is based on Mil Spec AR-15 upper and designed to work with Glock style lowers. The kit comes with everything you need to complete your AR45 project EXCEPT 80% lower receiver. Can be purchased separately. All componen..AR-45 45 ACP 7.5" Micro Pistol Build Kit / Shroud / Mlok / SBA3&nbs...$599.95$899.95 -
AR-9 9MM 5.5" 'Beware' Pistol Build Kit – Forged Upper, 4" Handguard, Blowback Gas SystemBuild your ultimate AR-9 9MM Pistol with this 5.5" 'Beware' Pistol Build Kit, featuring a Forged Upper Receiver and a 4" handguard with a Beware Skull and Crossbones dust cover. This comprehensive kit offers top..AR-9 9MM 5.5" 'Beware' Pistol Build Kit – Forged Upper, 4" Handguar...$399.95$599.95
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AR-9 9MM 5.5" Complete Pistol Kit – M-Lok, Spider Web Dust Cover, Color OptionsBuild your custom AR-9 9MM Pistol with this 5.5" Complete Pistol Kit, designed to deliver optimal performance and style. This kit includes high-quality mil-spec components for smooth operation, including a spider web ejec..AR-9 9MM 5.5" Complete Pistol Kit – M-Lok, Spider Web Dust Cover, C...$399.95$599.95 -
AR-9 9MM 5.5" Pistol Build Kit - Side Cut Billet Upper with 4" Handguard - Cerakote Camo Burnt BronzeBuild your custom AR-9 9MM pistol with this premium 5.5" AR-9 Pistol Kit, featuring a side cut billet upper and Cerakote Camo Burnt Bronze finish. This kit is designed to provide optimal performance ..AR-9 9MM 5.5" Pistol Build Kit - Side Cut Billet Upper with 4" Hand...$449.95$599.95
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AR-9 9MM 7.5" LRBHO "SLICK SIDE" PREMIUM CONE PISTOL KIT – Build Your Ultimate AR-9 Pistol!The AR-9 9MM 7.5" LRBHO Pistol Kit is your ultimate AR-9 build solution, featuring high-performance components that take your custom build to the next level. Designed for maximum accuracy and reliability, this..AR-9 9MM 7.5" LRBHO "SLICK SIDE" PREMIUM CONE PISTOL KIT – Build Yo...$749.99
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AR-9 9MM PISTOL KIT – 7.5″ M-LOK / SBA3 BRACE / MICROCAN – Build Your Perfect AR-9 Pistol!Everything you need to build a high-performance AR-9 Pistol is included in this 7.5” AR-9 Pistol Kit – just add your stripped lower receiver. This is the perfect option for those looking to assemble their own A..AR-9 9MM PISTOL KIT – 7.5″ M-LOK / SBA3 BRACE / MICROCAN – Build Yo...$439.95$649.99
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Moriarti Arms® AR-9 9MM 7.5" Glock-Compatible Custom Pistol Kit / Cerakote Gradient Color OptionsUnlock the full potential of your custom firearm with the Moriarti Arms® AR-9 9MM Glock-Compatible Build Kit (9x19). Specifically designed for optimal performance and reliability, this versatile AR-9 kit..Moriarti Arms® AR-9 9MM 7.5" Glock-Compatible Custom Pistol Kit / C...$499.95$699.95
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AR-9 9MM 8.3" Pistol Build Kit – 7" M-Lok, SBA3 Brace, Diverter, Slick Side, Non-LRBHOBuild your AR-9 9MM Pistol with this premium 8.3" Pistol Build Kit featuring a 7" M-Lok handguard, SBA3 Adjustable Brace, and a muzzle diverter for superior performance. This kit is designed to give you everything ..AR-9 9MM 8.3" Pistol Build Kit – 7" M-Lok, SBA3 Brace, Diverter, Sl...$449.95$699.95 -
AR-9 9MM 8.3" Shockwave Pistol Build Kit – M-Lok, Non-LRBHO – Choose Your Color!Build your perfect AR-9 8.3" Pistol with this complete pistol kit. Designed to be compatible with all standard AR-15, AR-9, and AR-45 Mil-Spec components, this kit features high-quality Mil-Spec parts made in the USA, en..AR-9 9MM 8.3" Shockwave Pistol Build Kit – M-Lok, Non-LRBHO – Choos...$449.95$599.95 -
AR-9 9MM 11" Micro Pistol Build Kit – M-Lok, SBA3 Brace, Shroud – Mil-Spec, Glock Lower CompatibleBuild your custom AR-9 9MM Pistol with this complete 11" Micro Pistol Build Kit, featuring a M-Lok handguard, SBA3 adjustable brace, and micro shroud for superior performance. This kit includes all the ..AR-9 9MM 11" Micro Pistol Build Kit – M-Lok, SBA3 Brace, Shroud – M...$449.95$699.95
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AR-9 9MM 11" PISTOL KIT WITH 10" QUAD HANDGUARD - Custom Color OptionsBuild your ultimate AR-9 pistol with this 11" pistol kit, featuring a 10" Quadrail handguard and premium Cerakote finishes. This kit offers custom color options to suit your unique style, and it includes everything you need to com..AR-9 9MM 11" PISTOL KIT WITH 10" QUAD HANDGUARD - Custom Color Opti...$399.95$699.95
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AR-9 16" Rifle Build Kit – 15" M-Lok, Magpul SL Stock, Mil-Spec Components – Choose Your Color!Ready to build your dream AR-9 16" rifle? This complete rifle build kit is packed with everything you need to finish your project – except for the 80% lower receiver (sold separately). Perfect for first-ti..AR-9 16" Rifle Build Kit – 15" M-Lok, Magpul SL Stock, Mil-Spec Com...$549.95$849.95 -
AR-9 9MM 16" Carbine Rifle Kit - 10" QaudRail | LE Stock | Color OptionsUpgrade your AR-9 build with this 16" Carbine Rifle Kit featuring a 10" QuadRail and LE 6-Position Stock. This Glock-style kit provides all the components necessary to complete your AR-9 project, excluding the 80% lower receiver..AR-9 9MM 16" Carbine Rifle Kit - 10" QaudRail | LE Stock | Color Op...$419.95$599.95 -
AR-9 9MM 16" Carbine Rifle Kit - 15" Slim M-LOK Rail | LE Stock | Glock Style BuildBuild your ultimate AR-9 rifle with this 16" Carbine Rifle Kit featuring a 15" Slim M-LOK Rail and LE 6-Position Stock. This Glock-style kit includes everything you need to complete your AR-9 rifle project, except for..AR-9 9MM 16" Carbine Rifle Kit - 15" Slim M-LOK Rail | LE Stock | G...$429.95$599.95
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AR-9 9MM 16" Carbine Tactical Rifle Kit – 12" M-Lok Handguard, Cerakote Camo Options, Glock StyleBuild your ultimate AR-9 9MM Carbine Rifle with this 16" tactical rifle kit. The kit includes everything you need for a high-performance, customizable 9MM build, featuring a mil-spec upper, Cerakote Camo..AR-9 9MM 16" Carbine Tactical Rifle Kit – 12" M-Lok Handguard, Cera...$419.95$599.95