FN America FN 16 vs Rosco Bloodline 16" 556

Compared on builder picks, today's prices and specs.

Our pick: the builders' favorite

FN America FN 16 Mid-Length 5.56mm

FN America FN 16 Mid-Length 5.56mm

Builders pick it 2.3 to 1 over the Rosco Bloodline 16" 556.

$199.73at KY Gun Company, in stock

Why the FN America FN 16 Mid-Length 5.56mm wins

Builders pick the FN America FN 16 Mid-Length 5.56mm 2.3 to 1 over the Rosco Bloodline 16" 556. It is in 5.4% of GunPartPicker builds that have a barrel, against 2.4% for the Rosco Bloodline 16" 556. It costs $33 more today ($199.73 against $166.50), so the Rosco Bloodline 16" 556 is the value pick if price comes first.

7 stores we track have the FN America FN 16 Mid-Length 5.56mm in stock. Builders paid a median $199.73 for it when they added it, against $152.10 for the Rosco Bloodline 16" 556. On paper they differ on gas system (Mid-Length against Carbine). It is most often built with the Geissele Automatics G2S Two Stage and the Magpul MOE Stock Collapsible.

Key differences

  • Builder picks: 70% for the FN America FN 16 Mid-Length 5.56mm, 30% for the Rosco Bloodline 16" 556
  • Lowest price in stock: $199.73 for the FN America FN 16 Mid-Length 5.56mm, $166.50 for the Rosco Bloodline 16" 556
  • Stores with it in stock: 7 for the FN America FN 16 Mid-Length 5.56mm, 1 for the Rosco Bloodline 16" 556
  • Median paid by builders: $199.73 for the FN America FN 16 Mid-Length 5.56mm, $152.10 for the Rosco Bloodline 16" 556
  • Gas System: Mid-Length for the FN America FN 16 Mid-Length 5.56mm, Carbine for the Rosco Bloodline 16" 556

About the brands

  • FN America is the US arm of Belgium's FN Herstal, making military M4A1s and M16s in South Carolina. More on FN America
  • Rosco makes US made, button rifled barrels in Rhode Island, mostly as an OEM for other gun companies. More on Rosco Manufacturing

In real builds

Builders pick the FN America FN 16 Mid-Length 5.56mm 2.3 to 1.

  • FN America FN 16 Mid-Length 5.56mm70%
  • Rosco Bloodline 16" 55630%
How we count ⌄

Shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales. Slot share is the share of builds with a barrel that chose this one. Median paid is the price shown when builders picked it, not today's price; the table below has today's prices.

Side by side

Spec
Fn Ar-15 M16 Barrel 16 Mid-Length 5.56mm
Our pickFn Ar-15 M16 Barrel 16 Mid-Length 5.56mm
Rosco Bloodline AR-15 16" 556 Barrel, 1:7 Twist - BL16M45567C
Rosco Bloodline AR-15 16" 556 Barrel, 1:7 Twist - BL16M45567C
Lowest in stock$199.73KY Gun Company$166.50Primary Arms
Stores in stock71
Caliber5.56 NATO5.56 NATO
Gas SystemMid-LengthCarbine
Length1616
Twist1:71:7
ContourM4M4
Thread1/2x281/2x28
Actions

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.

FN America FN 16 Mid-Length 5.56mm

Rosco Bloodline 16" 556

Price history, last 90 days

  • FN America FN 16 Mid-Length 5.56mm: lowest $199.73 on Aug 4, highest $298.99 on Aug 26 over the last 90 days.
  • Rosco Bloodline 16" 556: lowest $135.99 on Aug 4, highest $166.99 on Aug 9 over the last 90 days.