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DBOYS Reinforced M4/M16 body pins front & back

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Tighten up a rattly M4

Receiver wobble is one of the most common gripes with M4 and M16 airsoft rifles, and worn or flexy body pins are often to blame. This DBoys reinforced set replaces those factory pins with tougher steel items that hold the upper and lower together far more securely.

Screw-cap security

What sets these apart is the threaded cap on each pin. Once the pin is seated, the cap screws on to lock it in place, so it will not creep out or rattle loose during a hard day’s play. It is a simple design that solves a nagging problem.

Built to last

Machined from steel with a gun metal finish, these pins resist the bending and wear that plague softer factory parts. That means a tighter, quieter build that stays that way, game after game.

Check your platform

The set fits Tokyo Marui-spec M4/M16 receivers and the wide range of clones built to that standard. As fitment can vary slightly between brands, check against your gun if you are unsure. Browse more airsoft parts, or let our Kent repair workshop handle the fitting.

General
BrandDBoys
ColourGun Metal
Other
ModelBIM-52 / M-52
TypeReceiver body pin set
MaterialSteel
FinishGun Metal
Quantity2 pins
FitsAirsoft M4 / M16 receivers
FeatureScrew-on retaining caps
Compatibility NoteSuits Tokyo Marui-spec M4/M16 and clones

Frequently asked questions

What do these pins do?

They are the front and rear pins that hold the upper and lower receiver together on an M4 or M16. This reinforced set replaces the factory pins for a stronger, more secure fit.

How do the screw caps work?

Each pin has a cap that threads onto the pin once it is in place, locking it so it stays secure and cannot work loose during play.

Will these fit my M4?

They fit Tokyo Marui-spec M4/M16 receivers and the many clones built to that standard. Fitment can vary on some brands, so check against your gun if unsure.

Will they stop my receiver wobbling?

Tight, reinforced pins are a common fix for front/rear receiver play, giving a firmer, quieter feel. Note that severe wobble can also come from the receiver itself.

Is there an age restriction?

No. This is an external spare part with no age restriction and no UKARA requirement.