Plan your rifle build part by part.
Like PCPartPicker, for rifles. Pick real parts and see the rifle come together in 3D, catch compatibility problems before you order, and check your configuration against your state's rules.
Start a build
AR-15
America's most modular rifle platform
Semi-automatic modern sporting rifle built around mil-spec interchangeable components. Typically chambered in 5.56 NATO / .223 Rem, .300 BLK, and more.
11 required slots · 5 optional
AR-10 / LR-308
Big-bore modularity for .308 and 6.5 Creedmoor
The AR-15's larger sibling. Beware: there is no true mil-spec — DPMS and Armalite pattern parts do not interchange.
11 required slots · 5 optional
Bolt Action
Precision builds on the Remington 700 footprint
Custom precision rifle built around a Remington 700-footprint action, prefit barrel, and chassis or stock. The PRS/NRL standard.
4 required slots · 6 optional
AK / AKM
Stamped-receiver reliability in 7.62x39 and 5.45x39
Kalashnikov-pattern rifle built from a stamped receiver and parts kit. Assembly requires riveting tooling; imported parts are subject to federal 922(r) parts-count rules.
7 required slots · 5 optional
9mm PCC (AR-9)
Pistol-caliber carbine on the AR platform
Blowback 9mm carbine using Glock-pattern magazines. No gas system — a dedicated bolt and heavy buffer do the work. Muzzle threads are 1/2x36, not 1/2x28.
10 required slots · 5 optional
Rimfire (10/22-pattern)
America's favorite .22 LR trainer, endlessly customizable
Semi-auto .22 LR built on the 10/22 footprint. Cheap to shoot, and exempt from centerfire feature-test laws in most states — but magazine limits still apply.
5 required slots · 5 optional
Lever Action
Marlin, Henry, Winchester — upgraded, not built from scratch
Tube-fed lever-action rifle. Lever guns aren't assembled from a stripped receiver: you start from the rifle you own and upgrade it with rails, big-loop levers, aperture sights, forends and stocks cut for that model.
Start from your rifle →
Or start from a curated build
Proven configurations that pass every compatibility check — load one and make it yours.
AR-15
Budget 16" Carbine
A no-frills 16" carbine-gas 5.56 build on Bear Creek receivers and a Ballistic Advantage barrel, with mil-spec furniture and a Holosun red dot.
AR-15
Premium 16" Duty Carbine
A hard-use 16" mid-length .223 Wylde carbine with an adjustable .625 gas block, Geissele SSA-E, H2 buffer, and an Aimpoint duty dot. (16" rather than 14.5" pinned & welded, which the planner can't represent yet.)
AR-15
18" SPR / Recce
An 18" rifle-gas 5.56 recce rifle with a 15" free-float rail, A5 buffer system, flat-bow trigger, and a 1-6x LPVO (mount sold separately).
AR-15
California Featureless 16"
A featureless-configuration 16" .223 Wylde rifle for CA-style feature-test states: fixed carbine stock, fin grip, muzzle brake instead of a flash hider, and 10-round magazines.
AR-10 / LR-308
18" .308 General Purpose (DPMS high-profile)
Aero M5 receivers on an 18" rifle-gas CMV barrel under a 15" Midwest Industries rail, with a two-stage trigger, flash hider, 1-6x LPVO and 20-round PMAGs. A versatile .308 for hunting, carbine courses and 600-yard steel.
AR-10 / LR-308
22" 6.5 Creedmoor Precision Gasser
A Criterion 22" heavy-hybrid 6.5 Creedmoor barrel with a high-pressure Rubber City bolt, heavy H buffer, PRS Lite stock, M11 brake and a 4.5-27x FFP scope, fed from 10-round Lancer mags rated for 6.5 CM.
AR-10 / LR-308
16" .308 Budget Build
The cheapest complete path in the catalog: an uncoated M5 lower, KAK upper and 15" rail, Ballistic Advantage 16" mid-gas barrel, carbine buffer kit and a fixed MOE stock. Add an optic when funds allow.
Bolt Action
6.5 Creedmoor PRS Rig
Impact 737R with a PROOF carbon 6.5 Creedmoor prefit in a KRG Whiskey-3, TriggerTech Diamond, and a Vortex Razor on the action's integral rail. Rings and AICS magazines not included.
Bolt Action
Lightweight .308 Hunter
Zermatt Origin with a 20" PROOF carbon .308 small-shank prefit in a Grayboe Trekker with Hunter M5 DBM, TriggerTech Primary, Leupold VX-5HD, and an APA Micro Bastard. Rings and magazines not included.
Bolt Action
.300 Win Mag Long-Range
Lone Peak Fuzion long action with a magnum bolt face, PROOF carbon .300 Win Mag prefit, MDT XRS LA CIP chassis, Timney Calvin Elite, Leupold Mark 5HD 5-25x56, and an APA Fat Bastard. Rings and 3.850" AICS magazines not included.
AK / AKM
Classic AKM (7.62x39, wood)
Traditional fixed-stock AKM on a U.S. Childers receiver: chrome-lined U.S. barrel, Bulgarian carrier, Hungarian wood handguards, Romanian laminate stock, slant brake, and Circle 10 mag. Barrel press, riveting tools, and a bolt head (headspaced) are still needed.
AK / AKM
AK-74 (5.45x39, Magpul)
5.45x39 AK-74 on a U.S. receiver blank with a cold-hammer-forged nitrided barrel, Magpul MOE handguard, grip, and Zhukov-S folder, Red Star Arms adjustable trigger, AK-74 compensator, and PMAG 30 AK74.
AK / AKM
Modernized AKM with Red Dot
7.62x39 Rifle Dynamics receiver with a Toth nitrided barrel, UltiMAK M1-B gas-tube rail carrying a Holosun HS510C, FIME enhanced trigger, Magpul MOE AK stock and AK+ grip, Bulgarian brake, and PMAG 30 GEN M3. Add a lower handguard to finish the forend.
9mm PCC (AR-9)
Glock-Mag 16" Competition PCC
JP GMR-15 Glock-mag lower on a flat-top AR-15 upper with a 16" Faxon barrel, 15" Aero rail, KVP linear comp, hydraulic Kynshot buffer, Timney PCC trigger, and a Holosun 510C for steel-challenge style shooting.
9mm PCC (AR-9)
Colt-Mag 16" Budget PCC
Spike's Colt-pattern Spider lower and 9mm upper with a 16.25" Kaw Valley barrel (1/2x36), KAK bolt, Spike's 9mm heavy buffer, Magpul MOE furniture, Timney Impact PCC trigger, and ProMag 32-round Colt-pattern sticks.
9mm PCC (AR-9)
Aero EPC-9 Fixed-Stock PCC
All-Aero EPC-9 system (lower, LRBHO upper, bolt, 8.1 oz buffer kit, 16" barrel) with a fixed Magpul stock, Strike Industries fin grip, no muzzle device, CMC PCC trigger, and 10-round Glock magazines for restrictive states.
Rimfire (10/22-pattern)
Lightweight Pencil Plinker
Light, handy 10/22: Superlite aluminum receiver, threaded Faxon pencil barrel in Magpul's dual-tray MOE X-22, Ruger's BX-Trigger and a 2-7x rimfire scope.
Rimfire (10/22-pattern)
Bull-Barrel Match Rifle
All-Volquartsen action — stainless receiver, .920" match barrel, Competition Bolt and TG2000 — in a Boyds .920 Pro Varmint stock with a Leupold rimfire scope.
Rimfire (10/22-pattern)
KIDD Classic Bench Gun
KIDD Classic II receiver, bolt and two-stage trigger with a 20" Green Mountain stainless bull barrel in Hogue's .920 overmolded stock; optic goes on KIDD's own base.
Compatibility engine
Caliber, thread pitch, gas length, buffer/stock interfaces, DPMS vs Armalite patterns, and action footprints are checked live as you add parts.
Price tracking & sourcing
Every part shows multiple vendor listings, stock status, and a 12-week price history so you can buy each component at the right time.
Region legality checks
Pick your state and the planner flags NFA barrel lengths, feature-test violations, and magazine capacity limits — with suggested compliance swaps.