Builds/Castle Nut
AR builds with the Fortis Light Weight K1 Castle Nut and End Plate Black
These are the parts builders picked most often in builds with the Fortis Light Weight K1 Castle Nut and End Plate Black finished on GunPartPicker. At today's lowest prices the median parts list comes to $2,047, and most land between $1,158 and $4,265. The most common caliber is 5.56 NATO.
Median parts total
$2,047
Typical range
$1,158 to $4,265
Top caliber
5.56 NATO
Most chosen parts in builds with the Fortis Light Weight K1 Castle Nut and End Plate Black
- Upper Receiver14%Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15
- Lower Receiver21%Aero Precision Stripped M4E1 AR-15 Lower Receiver
- Barrel13%Rosco Manufacturing Bloodline 5.56 AR-15 Barrel M4 Carbine
- Handguard9%Aero Precision AR-15 Atlas S-One Slim Line Handguards Free
- Bolt Carrier Group16%Aero Precision AR-15 5.56 BCG W/C158 Bolt
- Trigger16%Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
- Charging Handle18%Aero Precision AR-15 Breach Charging Handle Ambidextrous
- Muzzle Device15%Zev Technologies 5.56 Muzzle Device
- Gas Block27%Strike Industries Collar Adjustable Gas Block
- Stock17%Daniel Defense Collapsible Mil-Spec Buttstock
- Buffer25%Bravo Company BCM Carbine H2 Buffer Weight
- Pistol Grip13%HEXMAG Rubber AR-15 Tactical Pistol Grip
| Slot | Most chosen | Share |
|---|---|---|
| Upper Receiver | Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15builds | 14% |
| Lower Receiver | Aero Precision Stripped M4E1 AR-15 Lower Receiverbuilds | 21% |
| Barrel | Rosco Manufacturing Bloodline 5.56 AR-15 Barrel M4 Carbinebuilds | 13% |
| Handguard | Aero Precision AR-15 Atlas S-One Slim Line Handguards Free | 9% |
| Bolt Carrier Group | Aero Precision AR-15 5.56 BCG W/C158 Boltbuilds | 16% |
| Trigger | Geissele Automatics AR-15 SSA-E X Lightning Bow Triggerbuilds | 16% |
| Charging Handle | Aero Precision AR-15 Breach Charging Handle Ambidextrousbuilds | 18% |
| Muzzle Device | Zev Technologies 5.56 Muzzle Devicebuilds | 15% |
| Gas Block | Strike Industries Collar Adjustable Gas Blockbuilds | 27% |
| Stock | Daniel Defense Collapsible Mil-Spec Buttstockbuilds | 17% |
| Buffer | Bravo Company BCM Carbine H2 Buffer Weightbuilds | 25% |
| Pistol Grip | HEXMAG Rubber AR-15 Tactical Pistol Gripbuilds | 13% |
Brands these builds pair with
Frequently asked questions
How much does a build with the Fortis Light Weight K1 Castle Nut and End Plate Black cost?
The median parts list is $2,047, with most between $1,158 and $4,265, using each part's lowest in stock price today. Open any part for store by store prices.
What parts go with the Fortis Light Weight K1 Castle Nut and End Plate Black?
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 is the most chosen upper receiver (14% of builds with one); Aero Precision Stripped M4E1 AR-15 Lower Receiver is the most chosen lower receiver (21% of builds with one); Rosco Manufacturing Bloodline 5.56 AR-15 Barrel M4 Carbine is the most chosen barrel (13% of builds with one); Aero Precision AR-15 Atlas S-One Slim Line Handguards Free is the most chosen handguard (9% of builds with one).
What calibers do builds with the Fortis Light Weight K1 Castle Nut and End Plate Black use?
Most run 5.56 NATO (75%), .223 Wylde (8%), 300 Blackout (6%), .308 Win (5%).
Shares come from builds finished on GunPartPicker. The price range totals a sample of recent builds at each part's lowest in stock price today; open a part for prices at every store. Want your own? Start an AR-15, AR-10 or AR-9 build.