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Heckler & Koch
Overview
The Heckler & Koch AR-15/HK416 Carbine Buffer Tube is designed as a Mil-Spec tube, ensuring compatibility with a wide range of carbine stocks. This tube is essential for the proper function of your buffer system, providing the necessary support and stability during operation. Typically, you'll find this buffer tube in builds chambered for .308 Win, making it a solid choice for those looking to create a robust and reliable firearm.
Based on build data

Strike Industries Extended Bolt Catch
Bolt Catch
Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock Adapter
Expo Arms Ar-15 Carbine Buffer Spring - 17-7 Steel
Buffer Spring
Strike Industries Cobra Billet Aluminum Trigger Guard - Red
Trigger Guard
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown Pin
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
Buffer SpringAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Strike Industries Extended Bolt Catch | Bolt Catch | 82 |
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 74 |
| Expo Arms Ar-15 Carbine Buffer Spring - 17-7 Steel | Buffer Spring | 68 |
| Strike Industries Cobra Billet Aluminum Trigger Guard - Red | Trigger Guard | 61 |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 59 |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | Buffer Spring | 57 |
| Platform | Percentage |
|---|---|
| AR-15 | 79.5% |
| AR-10 | 18.2% |
| AR-9 | 2.4% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.6% |
| .223 Wylde | 12% |
| 300 Blackout | 7.9% |
| .308 Win | 4.7% |
| .450 Bushmaster | 2.2% |
| 6mm ARC | 1.9% |
| 9mm | 1.3% |
| 6.5 Grendel | 1.3% |
| .458 SOCOM | 0.6% |
| 7.62x39mm | 0.6% |
| .22 ARC | 0.3% |
| .22 LR | 0.3% |
| .224 Valkyrie | 0.3% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 45.5% |
| Carbine | 26.9% |
| Rifle | 17.1% |
| Pistol | 9.8% |
| Blowback | 0.4% |
| Intermediate | 0.4% |
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