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Fortis Manufacturing
Overview
The Fortis K1 AR-15 Enhanced End Plate Castle Nut Combo is designed to provide a robust and reliable attachment point for your buffer tube, made from durable 7075-T6 aluminum for added strength. Its enhanced design ensures a secure fit while reducing the risk of loosening over time, which is particularly beneficial for builders focused on performance and longevity in their setups. This end plate is commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a practical choice for a wide range of applications.
Based on build data

Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension

Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK

B5 Systems Trigger Guard ATG-001-01

Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension | 11 | |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | 10 | |
| Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK | 9 | |
| B5 Systems Trigger Guard ATG-001-01 | 9 | |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | 8 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 8 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 100% |
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