Sons of Liberty Gun Works167514669
Solgw A5H2 Buffer Kit Grn Spring Blk$171.65
Availability: In Stock
Current Stock: Out of stock
The SOLGW A5H2 Buffer Kit with Green Spring delivers the intermediate buffer system upgrade that Sons of Liberty Gun Works installs standard on their rifles—now available as a complete retrofit package for your AR-15 lower receiver. If you're running a mil-spec setup and want the benefits of A5-platform ergonomics and reliability, this kit gives you everything needed in one box: tube, spring, buffer, castle nut, and end plate.
The A5 buffer system has earned its reputation among serious shooters for smoother recoil impulse and faster lock time compared to carbine-length systems. This kit centers on a purpose-built 9-position aluminum tube with the diameter and thread profile to handle real-world use. You get a Sprinco rifle-length green spring paired with an SOLGW/BCM T2 buffer, both engineered to work together as a tuned unit. The hard-anodized finish means the tube resists corrosion and wear, while dry-film lubrication comes factory-applied—no extra prep needed.
Rounding out the kit: an FCD castle nut and B5 QD end plate, both MIL-SPEC and ready to lock down securely. This is a no-guessing upgrade path for shooters who've researched the A5 platform and want a complete, quality solution. Installation requires standard AR armorer knowledge; if you're not comfortable with lower receiver work, have a qualified gunsmith handle it.
| Brand | Sons of Liberty Gun Works |
| Product | A5H2 Buffer Kit with Green Spring |
| Buffer Tube Type | A5 Intermediate, 9-position |
| Tube Material | 7075-T6 Aluminum |
| Tube Finish | Type 3 Class 2 Hard Anodized |
| Lubrication | Dry-film lubricated |
| Spring | Sprinco rifle-length (green) |
| Buffer | SOLGW/BCM T2 |
| Castle Nut | FCD CN5F, mil-spec |
| End Plate | B5 QD (quick detach) |
| Diameter | Mil-spec |
| Finish | Black |
This kit is designed to retrofit most mil-spec AR-15 lower receivers that accept standard buffer tubes. The mil-spec diameter and rolled threads ensure compatibility with standard receivers. If you have a proprietary lower or are unsure, check with the lower's manufacturer or consult a gunsmith before ordering.
The A5 intermediate platform uses a longer tube and larger diameter than carbine systems, allowing for tuning via multiple spring and buffer weight options. Many shooters report a smoother recoil impulse and faster lock time. This kit comes pre-paired with matched spring and buffer components from SOLGW and BCM for reliable performance out of the box.
The kit is spec'd with a Sprinco green spring, but Sprinco's manufacturing can result in springs that appear black rather than green depending on the anodizing lot. Functionally, there is no difference; this is a cosmetic variance only.
The kit contains the A5 buffer tube, spring, buffer, castle nut, and quick-detach end plate—everything required to assemble a complete buffer system on your lower receiver. You'll need basic AR armorer tools (castle nut wrench, etc.) to install, but no additional parts are required.
SKU: 126512648 • Weight: 0.88oz
Availability: In Stock
Current Stock: Out of stock
The SOLGW A5H2 Buffer Kit with Green Spring delivers the intermediate buffer system upgrade that Sons of Liberty Gun Works installs standard on their rifles—now available as a complete retrofit package for your AR-15 lower receiver. If you're running a mil-spec setup and want the benefits of A5-platform ergonomics and reliability, this kit gives you everything needed in one box: tube, spring, buffer, castle nut, and end plate.
The A5 buffer system has earned its reputation among serious shooters for smoother recoil impulse and faster lock time compared to carbine-length systems. This kit centers on a purpose-built 9-position aluminum tube with the diameter and thread profile to handle real-world use. You get a Sprinco rifle-length green spring paired with an SOLGW/BCM T2 buffer, both engineered to work together as a tuned unit. The hard-anodized finish means the tube resists corrosion and wear, while dry-film lubrication comes factory-applied—no extra prep needed.
Rounding out the kit: an FCD castle nut and B5 QD end plate, both MIL-SPEC and ready to lock down securely. This is a no-guessing upgrade path for shooters who've researched the A5 platform and want a complete, quality solution. Installation requires standard AR armorer knowledge; if you're not comfortable with lower receiver work, have a qualified gunsmith handle it.
| Brand | Sons of Liberty Gun Works |
| Product | A5H2 Buffer Kit with Green Spring |
| Buffer Tube Type | A5 Intermediate, 9-position |
| Tube Material | 7075-T6 Aluminum |
| Tube Finish | Type 3 Class 2 Hard Anodized |
| Lubrication | Dry-film lubricated |
| Spring | Sprinco rifle-length (green) |
| Buffer | SOLGW/BCM T2 |
| Castle Nut | FCD CN5F, mil-spec |
| End Plate | B5 QD (quick detach) |
| Diameter | Mil-spec |
| Finish | Black |
This kit is designed to retrofit most mil-spec AR-15 lower receivers that accept standard buffer tubes. The mil-spec diameter and rolled threads ensure compatibility with standard receivers. If you have a proprietary lower or are unsure, check with the lower's manufacturer or consult a gunsmith before ordering.
The A5 intermediate platform uses a longer tube and larger diameter than carbine systems, allowing for tuning via multiple spring and buffer weight options. Many shooters report a smoother recoil impulse and faster lock time. This kit comes pre-paired with matched spring and buffer components from SOLGW and BCM for reliable performance out of the box.
The kit is spec'd with a Sprinco green spring, but Sprinco's manufacturing can result in springs that appear black rather than green depending on the anodizing lot. Functionally, there is no difference; this is a cosmetic variance only.
The kit contains the A5 buffer tube, spring, buffer, castle nut, and quick-detach end plate—everything required to assemble a complete buffer system on your lower receiver. You'll need basic AR armorer tools (castle nut wrench, etc.) to install, but no additional parts are required.
SKU: 126512648 • Weight: 0.88oz