rifle length spring for a 20 inch build, aero quality is what you expect at the price. spring tension is consistent across the length, no wonky coils. pairs with a rifle buffer for a smooth full length gas impulse


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Aero Precision
Overview
The Aero Precision AR-15 Rifle Buffer Spring is designed specifically for the AR-15 platform, providing reliable performance in builds that utilize a rifle-length buffer system. Its length ensures proper cycling and helps maintain optimal operation in conjunction with mid-length gas systems, particularly when chambered in 5.56 NATO. This spring is commonly found in builds that prioritize consistent reliability and smooth recoil management.
Based on build data

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

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B

Strike Industries Extended Bolt Catch

CMMG AR-15 Carbine Buffer Assembly - 55CA977

Timber Creek Outdoors Ambidextrous Safety Selector - Black

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
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 | 84 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 82 | |
| Strike Industries Extended Bolt Catch | 74 | |
| CMMG AR-15 Carbine Buffer Assembly - 55CA977 | 62 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 53 | |
| Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD | 50 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| .223 Wylde | 50% |
| 5.56 NATO | 50% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 100% |
Builds in the community that include the Aero Precision Ar-15 Rifle Buffer Spring
| Build | Parts | Total |
|---|---|---|
![]() | 27 | $7862.71 |
![]() | 23 | $2350.21 |
![]() | 22 | $2090.38 |
![]() | 26 | $1830.41 |
![]() | 13 | $1115.56 |
![]() | 29 | $1715.48 |
![]() | 21 | $1244.90 |
![]() | 22 | $1301.37 |
![]() | 26 | $2027.02 |
![]() | 26 | $1842.57 |
![]() | 19 | $656.25 |
![]() | 23 | $1309.79 |
2 global ratings
rifle length spring for a 20 inch build, aero quality is what you expect at the price. spring tension is consistent across the length, no wonky coils. pairs with a rifle buffer for a smooth full length gas impulse
Aeros rifle length buffer spring works correctly in an A2 stock setup. Coil count and free length match milspec dimensions. Wish it came with a better price tag because the same dimensions in a basic stainless spring run half as much elsewhere.