Magpul vs Sons of Liberty: AR-15 brands compared

Sons of Liberty leads in 3 of 6 categories.

Magpul for handguards. Sons of Liberty for receivers and internals.

From tens of thousands of real builds and live prices at 30+ retailers.

Our take

Magpul is best for:

Magpul makes PMAG magazines, MOE stocks and grips, and created the M-LOK slot system that most handguards use now.

Created M-LOK · Mil-spec compatible · 60 day returns

  • Close to average prices
  • The more popular pick: in 29% of builds
  • Handguards, picked 7x as often

Sons of Liberty is best for:

SOLGW makes duty style AR-15s in San Antonio and sells barrels, uppers, gas tubes and gas blocks on their own. SOCOM chose its MK1 for the Combat Assault Rifle program.

Lifetime warranty · SOCOM contract · Duty rifles

  • Close to average prices
  • Receivers (Magpul receivers are rarely picked)
  • Internals (Magpul internals are rarely picked)

Many builders mix them: 37% of Sons of Liberty builds add Magpul, most often the stock.

Biggest differences

"Picked" is the share of builds with that part that chose each brand.

MagpulSons of LibertyDifference
Price vs average19% cheaper19% cheaper
Share of builds29%5%Magpul 6x
Parts listed1,103562Magpul 2.0x
Retailers carrying2316Magpul 1.4x

Price: Tie

For the same part, Magpul parts run 19% cheaper than average and Sons of Liberty parts run 19% cheaper than average.

Builder favorite: Magpul wins

Magpul is in 29% of builds and Sons of Liberty is in 5% of builds.

Why Magpul: Every Magpul product has a 60 day, no questions asked return policy, so you can test it in the field.

Receivers: Sons of Liberty wins

Sons of Liberty upper receivers picked often, Magpul rarely.

Internals: Sons of Liberty wins

Sons of Liberty gas blocks picked often, Magpul rarely.

Why Sons of Liberty: The M4-76 runs an A5 buffer system with a VLTOR A5-H2 buffer and a pinned and welded NOX muzzle device.

Furniture: Magpul wins

Builders pick Magpul handguards (7x) more often than Sons of Liberty. Magpul stocks and pistol grips are picked often, Sons of Liberty's rarely.

Why Magpul: The MOE SL stock fits mil-spec carbine tubes and has a slim profile, an anti-rattle feature and an ambi QD sling mount.

Shopper clicks: Sons of Liberty wins

Of recent clicks through to a store for these brands, 64% went to Sons of Liberty and 36% went to Magpul.

The full record

Everything we track for Magpul vs Sons of Liberty, from builds, store listings and daily prices.

MagpulSons of Liberty
Share of builds29%5%
Price tierMid pricedMid priced
Parts listed1,103562
Part types3429
Retailers carrying2316
In stock now85%25%
Price change, 90 dayson the most picked parts13% higher6% higher
On sale now2 partsNone

On sale now

What builders pair with them

Magpul vs Sons of Liberty: questions builders ask

Which should you buy, Magpul or Sons of Liberty?

Magpul for handguards. Sons of Liberty for receivers and internals. Pick Magpul if you want close to average prices: builders pay 19% cheaper than average. Builders pick its handguards 7x as often. Pick Sons of Liberty if you want close to average prices: builders pay 19% cheaper than average. Builders pick its receivers far more often and internals far more often. Or mix them like builders do: 37% of Sons of Liberty builds add Magpul, most often the stock.

Is Magpul cheaper than Sons of Liberty?

Close. Magpul 19% cheaper than average, Sons of Liberty 19% cheaper than average.

Which do more AR-15 builders use, Magpul or Sons of Liberty?

Magpul. Magpul is in 6.3x as many builds.

Magpul or Sons of Liberty: which receivers do builders pick?

Sons of Liberty. Sons of Liberty upper receivers picked often, Magpul rarely.

Magpul or Sons of Liberty: which internals do builders pick?

Sons of Liberty. Sons of Liberty gas blocks picked often, Magpul rarely.

Magpul or Sons of Liberty: which furniture do builders pick?

Magpul. Magpul handguards picked 7x as often.

Can you mix Magpul and Sons of Liberty parts?

Yes. 37% of Sons of Liberty builds add Magpul, most often the stock.

What is Magpul known for?

Magpul makes PMAG magazines, MOE stocks and grips, and created the M-LOK slot system that most handguards use now.

What is Sons of Liberty known for?

SOLGW makes duty style AR-15s in San Antonio and sells barrels, uppers, gas tubes and gas blocks on their own. SOCOM chose its MK1 for the Combat Assault Rifle program.