| 1. | On firing, both the barrel and barrel extension recoil to the rear.
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| 2. | The bird cage suppressor, silencer and barrel extension were attached by threaded plugs.
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| 3. | Further, the bolt locks into a barrel extension rather than directly to the receiver.
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| 4. | Brennan moved the feed ramp from the AR-10 barrel extension to the detachable magazines.
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| 5. | These flaps engage the cuts made in the short barrel extension to provide rigid locking.
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| 6. | Later on, he hides a gun inside one, using the lens as a barrel extension.
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| 7. | The bolt locks into the aft barrel extension.
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| 8. | The barrel threading is 20 and allows a barrel extension or suppressor to be attached.
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| 9. | These lugs locked into corresponding lugs in a barrel extension by means of a cam-rotated bolt.
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| 10. | For even more muzzle energy, a folding barrel extension can increase the barrel length to 21 calibers.
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मोबाइल