Does the Franklin Armory Libertas Billet work with the Rock River Arms Completed Pistol A4?
Lower Receiver
Franklin Armory Libertas Billet
from $611.99
Upper Receiver
Rock River Arms Completed Pistol A4 .223/5.56mm 10.5 Inch
from $549.99
Franklin Armory lower and Rock River Arms upper compatibility
Yes, they fit
The Franklin Armory Libertas Billet works with the Rock River Arms Completed Pistol A4 .223/5.56mm. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the Franklin Armory lower and Rock River Arms upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Franklin Armory Libertas Billet and any upper
Franklin Armory Libertas Billet
- Of lower picks
- 0.1%
- Median paid
- $612
Rock River Arms Completed Pistol A4
Not in enough builds yet to report.
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Franklin Armory lower and Rock River Arms upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Bolt Carrier Group
Fits both
Charging Handle
Radian Raptor & Talon Safety Selector Combo
Unconfirmed
Stock & Brace
Suppressor
Franklin Armory Libertas vs Rock River Arms Completed: specs and prices
| Franklin Armory Libertas | Rock River Arms Completed | |
|---|---|---|
| Best price | $611.99 at Classic Firearms | $549.99 at Optics Planet |
| Stores | 2 of 2 in stock | 0 of 1 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Receiver Type | n/a | A4 |
| Length | n/a | 10.5 |
Both for $1161.98 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Price history, last 90 days
- Franklin Armory Libertas Billet: lowest $611.99 on Jul 12, highest $611.99 on Jul 12 over the last 90 days.
- Rock River Arms Completed Pistol A4: lowest $519.99 on Aug 5, highest $549.99 on Jul 5 over the last 90 days.
Upper Receivers frequently paired with the Franklin Armory Libertas Billet
Most picked next to it in real builds. Only parts our rules say fit the Franklin Armory Libertas Billet are listed.
Lower Receivers most paired with Rock River Arms uppers
The Rock River Arms Completed Pistol A4 is not in enough builds yet, so these are the most picked next to any Rock River Arms upper. Only parts our rules say fit the Rock River Arms Completed Pistol A4 are listed.
