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 $1,758, and most land between $767 and $3,791. The most common caliber is 5.56 NATO.
Median parts total
$1,758
Typical range
$767 to $3,791
Top caliber
5.56 NATO
Most chosen parts in builds with the Fortis Light Weight K1 Castle Nut and End Plate Black
- Upper Receiver8%Bravo Company Mfg Upper Receiver Assembly
- Lower Receiver18%Aero Precision Stripped M4E1 AR-15 Lower Receiver
- Handguard17%Samson Manufacturing Corp. SXT Series Handguard
- Bolt Carrier Group22%Aero Precision AR-15 5.56 BCG W/C158 Bolt
- Trigger8%Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
- Charging Handle21%Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging
- Gas Block27%Superlative Arms Bleed Off Adjustable Gas Block Clamp on
- Stock11%Daniel Defense Collapsible Mil-Spec Buttstock
- Buffer17%Expo Arms AR-15 Carbine Buffer
- Pistol Grip16%Magpul MOE K2 Grip Polymer Gray
- Optic14%NCSTAR VISM SPD FlipDot Red-Dot Reflex Sight
- Optic Mount20%Weaver Multi-Slot Base
| Slot | Most chosen | Share |
|---|---|---|
| Upper Receiver | Bravo Company Mfg Upper Receiver Assemblybuilds | 8% |
| Lower Receiver | Aero Precision Stripped M4E1 AR-15 Lower Receiverbuilds | 18% |
| Handguard | Samson Manufacturing Corp. SXT Series Handguardbuilds | 17% |
| Bolt Carrier Group | Aero Precision AR-15 5.56 BCG W/C158 Boltbuilds | 22% |
| Trigger | Geissele Automatics AR-15 SSA-E X Lightning Bow Triggerbuilds | 8% |
| Charging Handle | Breek Arms AR-15 Warhammer MOD2 Ambidextrous Chargingbuilds | 21% |
| Gas Block | Superlative Arms Bleed Off Adjustable Gas Block Clamp onbuilds | 27% |
| Stock | Daniel Defense Collapsible Mil-Spec Buttstockbuilds | 11% |
| Buffer | Expo Arms AR-15 Carbine Bufferbuilds | 17% |
| Pistol Grip | Magpul MOE K2 Grip Polymer Graybuilds | 16% |
| Optic | NCSTAR VISM SPD FlipDot Red-Dot Reflex Sightbuilds | 14% |
| Optic Mount | Weaver Multi-Slot Basebuilds | 20% |
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 $1,758, with most between $767 and $3,791, 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 Mfg Upper Receiver Assembly is the most chosen upper receiver (8% of builds with one); Aero Precision Stripped M4E1 AR-15 Lower Receiver is the most chosen lower receiver (18% of builds with one); Samson Manufacturing Corp. SXT Series Handguard is the most chosen handguard (17% of builds with one); Aero Precision AR-15 5.56 BCG W/C158 Bolt is the most chosen bolt carrier group (22% 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 (62%), .223 Wylde (21%), 300 Blackout (8%), .223 Remington (3%).
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.